Union Butterfield 1578(UNC) High-Speed Steel Spiral Point Tap, Screw Thread Insert, Uncoated (Bright) Finish, Round Shank With Square End, H2 Tolerance, 1/4"-20 Thread Size

Union Butterfield 1578(UNC) High-Speed Steel Spiral Point Tap, Screw Thread Insert, Uncoated (Bright) Finish, Round Shank With Square End, H2 Tolerance, 1/4"-20 Thread Size Reviews

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Union Butterfield 1578(UNC) High-Speed Steel Spiral Point Tap, Screw Thread Insert, Uncoated (Bright) Finish, Round Shank With Square End, H2 Tolerance, 1/4"-20 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap and straight flutes for cutting threads in through holes
• Oversized tap for producing threads that will receive a helical coil wire screw thread insert (STI) of the same nominal size and pitch.
• Relieved-style design reduces friction between tap and workpiece for reduced tool wear
• Plug chamfer for easier starting and correct perpendicular alignment

The Union Butterfield 1578(UNC)/1578(UNF) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes, and a round shank with a square end, and is used in a range of materials to tap oversized thread that will receive a helical coil wire screw thread insert (STI). It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make this tool suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for reduced tool wear. A screw thread insert is used to replace stripped, damaged, or weakened internal threads. STI taps are oversized so they can tap threads that will receive a helical coil wire STI of the same nominal size and pitch. The plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provide an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1578(UNC) and 1578(UNF) tap series, all taps have two flutes and plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 1 ½ times its diameter. It is suitable for ANSI 2B and 3B tolerance classes: 2B is an average quality fit for commercial and industrial fasteners; 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

Detail Reviews

Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, 7/16"-14 Thread Size

Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, 7/16"-14 Thread Size Reviews

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Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, 7/16"-14 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap with straight flutes for cutting threads in through holes
• Black oxide finish improves lubricity, resists corrosion, and helps prevent buildup
• Relieved-style design with high hook, special outside diameter and pitch diameter relief, and increased back taper for free cutting action
• Some sizes are recessed between body and shank for deep-hole applications

The Union Butterfield 1985(UNC)/1985(UNF) high-speed steel spiral point tap has a relieved-style design, straight flutes with a plug chamfer, black oxide surface treatment, and a round shank with a square end, and is used to create right-hand threads in steel, stainless steel, titanium and nickel. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). The black oxide finish of this tool will not chip. It improves lubricity, resists corrosion, and helps to prevent buildup and welding on the cutting edge of the tool. Relieved-style tap design reduces the friction between tap and workpiece for reduced tool wear. This tap features a high hook, special outside diameter, pitch diameter relief, and increased back taper for free cutting action. A plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1985(UNC) series, taps in machine screw sizes 4 to 12 and those with 1/4” nominal diameter have two flutes, taps with nominal diameters of 5/16” to 3/4” have three flutes, and those with nominal diameters of 7/8” and 1” have four flutes. In the 1985(UNF) series, taps in machine screw sizes 4 to 12 and those with 1/4” nominal diameter have two flutes, taps with nominal diameters of 5/16” to 3/4” have three flutes, and taps with 7/8” nominal diameter have four flutes. All taps in these series have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. It is suitable for the ANSI 3B tolerance class: 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications. Sizes ranging from machine screw size 4 to 3/8” nominal diameter are recessed between body and shank for deep-hole applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

Detail Reviews

Union Butterfield 1585(UNC) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H5 Tolerance, 3 Flute, 5/16"-18 Thread Size

Union Butterfield 1585(UNC) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H5 Tolerance, 3 Flute, 5/16"-18 Thread Size Reviews

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Union Butterfield 1585(UNC) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H5 Tolerance, 3 Flute, 5/16"-18 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap with straight flutes for cutting threads in through holes
• Relieved-style design reduces friction between tap and workpiece for reduced tool wear
• Round shank with square end helps to minimize rotation in the tool holder
• Available in UNC (Unified Coarse) and UNF (Unified Fine) right-hand thread options for different applications

The Union Butterfield 1585(UNC)/1585(UNF) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes, and a round shank with a square end, and is used to create right-hand threads in a range of materials. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for longer tool life.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provides an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1585(UNC) and 1585(UNF) tap series, taps with 1/4” to 5/16” nominal diameters are available in two or three flutes, and those with 3/8” to 3/4” nominal diameters have three flutes. They are available with a variety of chamfers. These taps conform to ANSI standards and can create threads to a depth 2 ½ times their diameter. They are suitable for the ANSI 3B tolerance class: 3B produces close-tolerance fasteners that resist loosening, as in aerospace applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

• Union Butterfield 1585NR(UNC) High-Speed Steel Spiral Point Tap, Non-Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 2 Flute, H1 Tolerance, 1/4"-20 Thread Size
• Union Butterfield 1528(UNF) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 4 Flute, H2 Tolerance, #8-36 Thread Size
• 416 Stainless Steel Shoulder Screw, Slotted Drive, #8-32, 3/16" Shoulder Diameter, 5/8" Shoulder Length (Pack of 5)
• Alloy Steel Set Screw, Hex Socket Drive, Cup Point, 3/8"-16, 1-3/4" Length (Pack of 25)

Detail Reviews

Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, 1/4"-20 Thread Size

Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, 1/4"-20 Thread Size Reviews

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Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, 1/4"-20 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap with straight flutes for cutting threads in through holes
• Black oxide finish improves lubricity, resists corrosion, and helps prevent buildup
• Relieved-style design with high hook, special outside diameter and pitch diameter relief, and increased back taper for free cutting action
• Some sizes are recessed between body and shank for deep-hole applications

The Union Butterfield 1985(UNC)/1985(UNF) high-speed steel spiral point tap has a relieved-style design, straight flutes with a plug chamfer, black oxide surface treatment, and a round shank with a square end, and is used to create right-hand threads in steel, stainless steel, titanium and nickel. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). The black oxide finish of this tool will not chip. It improves lubricity, resists corrosion, and helps to prevent buildup and welding on the cutting edge of the tool. Relieved-style tap design reduces the friction between tap and workpiece for reduced tool wear. This tap features a high hook, special outside diameter, pitch diameter relief, and increased back taper for free cutting action. A plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1985(UNC) series, taps in machine screw sizes 4 to 12 and those with 1/4” nominal diameter have two flutes, taps with nominal diameters of 5/16” to 3/4” have three flutes, and those with nominal diameters of 7/8” and 1” have four flutes. In the 1985(UNF) series, taps in machine screw sizes 4 to 12 and those with 1/4” nominal diameter have two flutes, taps with nominal diameters of 5/16” to 3/4” have three flutes, and taps with 7/8” nominal diameter have four flutes. All taps in these series have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. It is suitable for the ANSI 3B tolerance class: 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications. Sizes ranging from machine screw size 4 to 3/8” nominal diameter are recessed between body and shank for deep-hole applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

Detail Reviews

Union Butterfield 1534NR(UNF) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 1-15/16" O'all length, #2-64 Thread Size

Union Butterfield 1534NR(UNF) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 1-15/16" O'all length, #2-64 Thread Size Reviews

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Union Butterfield 1534NR(UNF) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 1-15/16" O'all length, #2-64 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point with straight flutes for cutting threads in through holes
• Non-relieved design for applications requiring close gauging fits, for manual feed rate applications, or for use on older equipment
• Round shank with square end helps to minimize rotation in the tool holder
• Available in UNC (Unified Coarse), UNF (Unified Fine), or UNS (Unified Special) right-hand thread options for different applications

The Union Butterfield 1534NR(UNC)/1534(UNF)/1534(UNS) uncoated, high-speed steel spiral point tap has a non-relieved design, straight flutes, and a round shank with a square end, and is used to create right-hand threads in a range of materials. It is available in three different ANSI thread specification standards: UNC (Unified Coarse), UNF (Unified Fine), or UNS (Unified Special). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). The non-relieved design of this series has concentric threads without pitch diameter relief. It is recommended for applications requiring close gauging fits and in older equipment that is not sufficiently rigid to accomodate the relieved-style series of spiral pointed taps.

Right-hand threads are designed to tighten when the head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provide an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1534NR tap series all taps have two flutes. The 1534NR(UNC) and 1534(UNF) taps are available with a variety of chamfers. The single 1534(UNS) tap has a plug chamfer. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. Both 1534NR(UNC) and 1534NR(UNF) taps are suitable for ANSI 2B and 3B tolerance classes: 2B is an average quality fit for commercial and industrial fasteners; 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications. The single 1534NR(UNS) tap is suitable for the ANSI 3B tolerance class.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

• Union Butterfield 1528(UNF) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 4 Flute, H2 Tolerance, #8-36 Thread Size
• Union Butterfield 1534(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H1 Tolerance, #10-24 Thread Size
• Black Oxide Heat Treated Alloy Steel Socket Head Cap Screw, Hex Socket Drive, 1/4"-20, 1-3/4" Length (Pack of 100)
• Q-tips Cotton Swabs, 500 Count
• Stainless Steel Machine Screw, Flat Head, Phillips Drive, #10-32, 5/16" Length (Pack of 100)

Detail Reviews

Union Butterfield TN1585(UNC) High-Speed Steel Spiral Point Tap, TiN Coated, Round With Square End, Plug Chamfer, 3 Flute, H3 Tolerance, 5/16"-18 Thread Size

Union Butterfield TN1585(UNC) High-Speed Steel Spiral Point Tap, TiN Coated, Round With Square End, Plug Chamfer, 3 Flute, H3 Tolerance, 5/16"-18 Thread Size Reviews

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Union Butterfield TN1585(UNC) High-Speed Steel Spiral Point Tap, TiN Coated, Round With Square End, Plug Chamfer, 3 Flute, H3 Tolerance, 5/16"-18 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point and straight flutes for cutting threads in through holes
• Titanium nitride (TiN) coating combines hardness with low friction for extended tool life and faster cutting
• Relieved-style design reduces friction between tap and workpiece for reduced tool wear
• Plug chamfer for easier starting and correct perpendicular alignment

The Union Butterfield TN1585(UNC)/TN1585(UNF) high-speed steel spiral point tap has a relieved-style design, straight flutes with a plug chamfer, titanium nitride (TiN) coating, and a round shank with a square end, and is used to create right-hand threads in a range of materials. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Titanium nitride (TiN) is a gold-colored ceramic coating that combines hardness with low friction for extended cutting tool life and permits faster cutting speeds than with uncoated tools. Relieved-style tap design reduces the friction between tap and workpiece for reduced tool wear. A plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield TN1585(UNC) tap series, taps with nominal diameters of ¼“ and 5/16” are available with two or three flutes and those with diameters of 3/8” to ½” have three flutes. In the TN1585(UNF) series, taps with nominal diameters of ¼” and 5/16” have two flutes and those with diameters of 3/8” to ½” have three flutes. All taps in these series have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. TN1585(UNC) taps are suitable for ANSI 2B and 3B tolerance classes: 2B is an average quality fit for commercial and industrial fasteners; 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications. TN 1585(UNF) taps are suitable for the ANSI 3B tolerance class.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

Detail Reviews

Union Butterfield 1585OV(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 5/16"-18 Thread Size

Union Butterfield 1585OV(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 5/16"-18 Thread Size Reviews

Other Picture

Union Butterfield 1585OV(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, 5/16"-18 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap with straight flutes for cutting threads in through holes
• Oversized by .005" to allow for material added by plating or heat-treating after tapping
• Relieved-style design reduces friction between tap and workpiece for reduced tool wear
• Plug chamfer for easier starting and correct perpendicular alignment

The Union Butterfield 1585OV(UNC) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes with a plug chamfer, and a round shank with a square end, and is used in a range of materials to create right-hand threads that will be plated or heat-treated after tapping. It is available in ANSI UNC (Unified Coarse) thread standard sizes. The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for longer tool life. Oversized taps are used to create threads that are slightly undersized to allow for material added by plating or heat-treating after tapping. Relieved-style design reduces the friction between tap and workpiece for reduced tool wear. A plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when the head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provide an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1585OV(UNC) tap series, taps with 1/4” to 5/16” nominal diameters have two flutes, and those with 3/8” to 5/8” nominal diameters have three flutes. In this series all taps have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 times its diameter.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

Detail Products

Detail Reviews

SPT-1213 1/2-13 NC High Speed Steel 4 Flute Ground Thread Spiral Point Tap

SPT-1213 1/2-13 NC High Speed Steel 4 Flute Ground Thread Spiral Point Tap Reviews

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Spiral Point Taps are also known as gun taps, these are typically used in through hole tapping. Have an angular point that pushes chips ahead of the tap and out of the hole. Also for use in deep blind holes where accumulated chips are beyond the length of the thread being cut.

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Detail Products

Detail Reviews

Union Butterfield 1585(UNF) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H4 Tolerance, 3 Flute, 1/4"-28 Thread Size

Union Butterfield 1585(UNF) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H4 Tolerance, 3 Flute, 1/4"-28 Thread Size Reviews

Other Picture

Union Butterfield 1585(UNF) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H4 Tolerance, 3 Flute, 1/4"-28 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap with straight flutes for cutting threads in through holes
• Relieved-style design reduces friction between tap and workpiece for reduced tool wear
• Round shank with square end helps to minimize rotation in the tool holder
• Available in UNC (Unified Coarse) and UNF (Unified Fine) right-hand thread options for different applications

The Union Butterfield 1585(UNC)/1585(UNF) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes, and a round shank with a square end, and is used to create right-hand threads in a range of materials. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for longer tool life.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provides an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1585(UNC) and 1585(UNF) tap series, taps with 1/4” to 5/16” nominal diameters are available in two or three flutes, and those with 3/8” to 3/4” nominal diameters have three flutes. They are available with a variety of chamfers. These taps conform to ANSI standards and can create threads to a depth 2 ½ times their diameter. They are suitable for the ANSI 3B tolerance class: 3B produces close-tolerance fasteners that resist loosening, as in aerospace applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

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Precision Twist R41C High Speed Steel Short Length Drill Bit, Black Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, #26 (Pack of 12)

Precision Twist R41C High Speed Steel Short Length Drill Bit, Black Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, #26 (Pack of 12) Reviews

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Precision Twist R41C High Speed Steel Short Length Drill Bit, Black Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, #26 (Pack of 12) Feature

• NAS 907 type C standards, for use in the aerospace industry
• Short-length (also called stub), for better rigidity and increased strength
• Steam tempering (also called black oxide), to retain cutting fluids and to prevent chip-to-tool welding
• 135-degree split-point angles are self-centering, reduce walking, can be used with hard materials, and reduce pressure on cutting edges
• High-speed steel (HSS), for use on a wide variety of materials

The Precision Twist R41 short-length drill bit, is a round shank bit made of HSS with a steam tempering (black oxide) finish. It is suitable for drilling to a depth up to four times the diameter of the drill. The shank diameter is the same as the drill size. For best performance, use for drilling into steel, stainless steel, cast iron, and titanium.

The R41C series was designed for the aircraft industry, but also works well for drilling into a variety of materials. The short length and 135-degree split-point drill geometry provide a stable and rigid platform and ensure a more accurate hole by reducing walking when the hole is started. Steam tempering finish gives a strongly adhering blue oxide surface that acts to retain cutting fluid and prevent chip to tool welding, reducing the formation of a built-up edge. The finish retains lubricant to aid in wear resistance and chip flow.

The R41C series has a type N flute form, with a regular helix angle of 21 to 34 degrees. Uncoated tools have no finish or coating. They are a common choice for general use applications. The short-stub length has more rigidity for drilling straighter, shallower holes than Jobber-length bits. Spiral flutes act as a passageway for chip extraction from the hole and for coolant to enter the hole. Right-hand twist brings chips up and away from the cutting edge.

Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits are commonly used to drill holes with hand-operated drills, standalone drill presses, or lathes. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. These drill bits have a right-hand twist that brings chips up and away from the cutting edge. They are made to ANSI (fractional sizing) and NAS 907 type C industry standards, which help ensure that drill bits around the world conform to the same specifications.

Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. They have locations around the world, and provide tools adhering to ANSI, NAS, and DIN standards.

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Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, #12-24 Thread Size

Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, #12-24 Thread Size Reviews

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Union Butterfield 1985(UNC) High-Speed Steel Spiral Point Tap, High-Hook, Black Oxide Finish, Round Shank With Square End, Plug Chamfer, #12-24 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point tap with straight flutes for cutting threads in through holes
• Black oxide finish improves lubricity, resists corrosion, and helps prevent buildup
• Relieved-style design with high hook, special outside diameter and pitch diameter relief, and increased back taper for free cutting action
• Some sizes are recessed between body and shank for deep-hole applications

The Union Butterfield 1985(UNC)/1985(UNF) high-speed steel spiral point tap has a relieved-style design, straight flutes with a plug chamfer, black oxide surface treatment, and a round shank with a square end, and is used to create right-hand threads in steel, stainless steel, titanium and nickel. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). The black oxide finish of this tool will not chip. It improves lubricity, resists corrosion, and helps to prevent buildup and welding on the cutting edge of the tool. Relieved-style tap design reduces the friction between tap and workpiece for reduced tool wear. This tap features a high hook, special outside diameter, pitch diameter relief, and increased back taper for free cutting action. A plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1985(UNC) series, taps in machine screw sizes 4 to 12 and those with 1/4” nominal diameter have two flutes, taps with nominal diameters of 5/16” to 3/4” have three flutes, and those with nominal diameters of 7/8” and 1” have four flutes. In the 1985(UNF) series, taps in machine screw sizes 4 to 12 and those with 1/4” nominal diameter have two flutes, taps with nominal diameters of 5/16” to 3/4” have three flutes, and taps with 7/8” nominal diameter have four flutes. All taps in these series have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. It is suitable for the ANSI 3B tolerance class: 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications. Sizes ranging from machine screw size 4 to 3/8” nominal diameter are recessed between body and shank for deep-hole applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

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Union Butterfield 1785M High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, M8-1.25 Thread Size

Union Butterfield 1785M High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, M8-1.25 Thread Size Reviews

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Union Butterfield 1785M High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, M8-1.25 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point with straight flutes for cutting threads in through holes
• Relieved-style design reduces friction between tap and workpiece for reduced tool wear
• Produces ANSI standard right-hand threads in metric sizes
• Plug chamfer for easier starting and correct perpendicular alignment

The Union Butterfield 1785M uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes with a plug chamfer, and a round shank with a square end, and is used to create right-hand threads in a range of materials. This tool produces ANSI standard threads in metric sizes. The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Relieved-style tap design reduces the friction between tap and workpiece for reduced tool wear. A plug chamfer distributes cutting to ease tapping at the beginning of the hole and to maintain correct perpendicular alignment with the workpiece.

Right-hand threads are designed to tighten when the head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools, and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provide an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1785M tap series, taps with nominal diameters of 2 mm to 8 mm have two flutes and those with diameters of 9 mm to 18 mm have three flutes. All taps in this series have plug chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. It is suitable for the ANSI 6H tolerance class: 6H is used for a normal length of thread engagement and medium tolerance quality.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

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Union Butterfield 1534(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, H3 Tolerance, #6-32 Thread Size

Union Butterfield 1534(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, H3 Tolerance, #6-32 Thread Size Reviews

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Union Butterfield 1534(UNC) High-Speed Steel Spiral Point Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, H3 Tolerance, #6-32 Thread Size Feature

• Spiral point tap pushes chips ahead of tool to reduce clogging
• Spiral point and straight flutes for cutting threads in through holes
• Relieved-style design with eccentric, full-pitch diameter thread relief for free cutting and reduced tool wear
• Round shank with square end helps to minimize rotation in the tool holder
• Available in UNC (Unified Coarse) and UNF (Unified Fine) right-hand thread options for different applications

The Union Butterfield 1534(UNC)/1534(UNF) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes, and a round shank with a square end, and is used to create right-hand threads in a range of materials. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for reduced tool wear. This tap features eccentric, full pitch diameter thread relief for free cutting and increased tool life.

Right-hand threads are designed to tighten when a head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provide an economical alternative to coated tools. The round shank with square end helps to minimize rotation in the tool holder. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.

In the Union Butterfield 1534(UNC) and 1534(UNF) tap series, all tap sizes have two flutes. They are available with a variety of chamfers. This tap conforms to ANSI standards and can create threads to a depth 2 ½ times its diameter. It is suitable for ANSI 2B and 3B tolerance classes: 2B is an average quality fit for commercial and industrial fasteners; 3B produces close-tolerance fasteners used for greater resistance to stripping, as in aerospace applications.

Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Visit Store Now !!

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