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    229 Products

    For Threading

    For Threading

    Performance

    Chip-Clearing Taps for Steel and Stainless Steel

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Steel and Stainless Steel, Spiral-Point Flute for Through Holes.

    Spiral-Point Flute for Through Holes

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Steel and Stainless Steel, Spiral Flute for Blind Holes.

    Spiral Flute for Blind Holes

    Made of a high-vanadium alloy, these taps are harder and more wear-resistant than other high-speed steel taps. The flute design prevents buildup to protect the quality of the threads and avoid damage to the tap. Since you don’t need to reverse these taps to extract chips, they also create threads faster.
    High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.
    Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.
    Spiral Flute for Blind Holes—Pull chips back toward the tap so they won't build up in blind holes. When tapping brittle material like iron that creates fine or powdery debris, choose a straight-flute tap.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Bottoming Chamfer—These taps have the shortest taper to thread close to the bottom of blind holes. They require the most force to turn, so they’re often used to finish holes started by plug-chamfer taps.
    Drill Bit
    Spiral-Point Flute
    for Through Holes
    Spiral Flute for Blind Holes
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    Chamfer
    Type
    No. of
    Flutes
    Each
    High-Speed Steel
     
    Black Oxide
    2-56
    		3/8"1 3/4"UNC
    		51 Ga.
    		0.067"SquarePlug22684A61000000—————0
    2-56
    		13/32"1 3/4"UNC
    		51 Ga.
    		0.067"Square—————0Bottoming227055A11000000
    3-48
    		7/16"1 13/16"UNC
    		47 Ga.
    		0.0785"SquarePlug22684A6200000—————0
    4-40
    		1/2"1 7/8"UNC
    		43 Ga.
    		0.089"SquarePlug22684A2900000Bottoming227055A3100000
    4-48
    		1/2"1 7/8"UNF
    		42 Ga.
    		0.0935"SquarePlug22684A6300000—————0
    4-48
    		17/32"1 7/8"UNF
    		42 Ga.
    		0.0935"Square—————0Bottoming227055A3200000
    5-40
    		19/32"1 15/16"UNC
    		38 Ga.
    		0.1015"SquarePlug22684A6400000Bottoming227055A3300000
    6-32
    		3/8"2"UNC
    		36 Ga.
    		0.1065"SquarePlug22684A3100000Bottoming227055A3400000
    6-40
    		3/8"2"UNF
    		33 Ga.
    		0.113"SquarePlug22684A6500000Bottoming227055A3500000
    8-32
    		3/8"2 1/8"UNC
    		29 Ga.
    		0.136"SquarePlug22684A3200000Bottoming327055A3600000
    8-36
    		3/8"2 1/8"UNF
    		29 Ga.
    		0.136"SquarePlug22684A8400000—————0
    10-24
    		1/2"2 3/8"UNC
    		25 Ga.
    		0.1495"SquarePlug22684A3300000Bottoming327055A3700000
    10-32
    		1/2"2 3/8"UNF
    		21 Ga.
    		0.159"SquarePlug22684A3400000Bottoming327055A3800000
    12-24
    		1/2"2 3/8"UNC
    		16 Ga.
    		0.177"SquarePlug22684A6600000—————0
    12-24
    		1/2"2 7/16"UNC
    		16 Ga.
    		0.177"Square—————0Bottoming327055A3900000
    12-28
    		1/2"2 3/8"UNF
    		15 Ga.
    		0.18"SquarePlug22684A6700000—————0
    12-28
    		1/2"2 7/16"UNF
    		15 Ga.
    		0.18"Square—————0Bottoming327055A4100000
    1/4"-20
    		5/8"2 1/2"UNC
    		7 Ga.
    		0.201"SquarePlug32684A3500000Bottoming327055A4200000
    1/4"-28
    		5/8"2 1/2"UNF
    		3 Ga.
    		0.213"SquarePlug32684A3600000Bottoming327055A4300000
    5/16"-18
    		11/16"2 23/32"UNC
    		F
    		0.257"SquarePlug32684A3700000Bottoming327055A4400000
    5/16"-24
    		11/16"2 23/32"UNF
    		I
    		0.272"SquarePlug32684A3800000Bottoming327055A4500000
    3/8"-16
    		3/4"2 15/16"UNC
    		5/16"
    		0.3125"SquarePlug32684A3900000Bottoming327055A4600000
    3/8"-24
    		3/4"2 15/16"UNF
    		Q
    		0.332"SquarePlug32684A4100000Bottoming327055A4700000
    7/16"-14
    		9/16"3 5/32"UNC
    		V
    		0.377"Square—————0Bottoming327055A48800000
    7/16"-14
    		7/8"3 5/32"UNC
    		U
    		0.368"SquarePlug32684A6800000—————0
    7/16"-20
    		7/8"3 5/32"UNF
    		25/64"
    		0.3906"SquarePlug32684A6900000Bottoming327055A4900000
    1/2"-13
    		15/16"3 3/8"UNC
    		27/64"
    		0.4219"SquarePlug32684A7100000Bottoming327055A5100000
    1/2"-20
    		15/16"3 3/8"UNF
    		29/64"
    		0.4531"SquarePlug32684A7200000Bottoming327055A5200000
    9/16"-12
    		1"3 19/32"UNC
    		31/64"
    		0.4844"SquarePlug32684A8500000—————0
    9/16"-18
    		1"3 19/32"UNF
    		33/64"
    		0.5156"SquarePlug32684A8600000—————0
    5/8"-11
    		1 3/32"3 13/16"UNC
    		17/32"
    		0.5313"SquarePlug32684A7500000Bottoming327055A5500000
    5/8"-18
    		1 3/32"3 13/16"UNF
    		37/64"
    		0.5781"SquarePlug32684A7600000Bottoming327055A5600000
    3/4"-10
    		1 7/32"4 1/4"UNC
    		21/32"
    		0.6563"SquarePlug32684A7700000Bottoming427055A57000000
    3/4"-16
    		1 7/32"4 1/4"UNF
    		11/16"
    		0.6875"SquarePlug32684A7800000Bottoming427055A58000000
    7/8"-9
    		1 11/32"4 11/16"UNC
    		49/64"
    		0.7656"SquarePlug32684A79000000Bottoming427055A59000000
    7/8"-14
    		1 11/32"4 11/16"UNF
    		13/16"
    		0.8125"SquarePlug32684A81000000Bottoming427055A61000000
    1"-8
    		1 1/2"5 1/8"UNC
    		7/8"
    		0.875"SquarePlug32684A82000000Bottoming427055A62000000
    1"-12
    		1 1/2"5 1/8"UNF
    		59/64"
    		0.9219"SquarePlug32684A83000000Bottoming427055A63000000
    M3 × 0.5 mm19/32"1 15/16"Metric
    		2.5 mm
    		0.0984"SquarePlug22671A7100000Plug28296A2100000
    M3.5 × 0.6 mm3/8"2"Metric
    		2.9 mm
    		0.1142"SquarePlug22671A8100000Plug28296A2200000
    M4 × 0.7 mm3/8"2 1/8"Metric
    		3.3 mm
    		0.1299"SquarePlug22671A7200000Plug38296A2300000
    M5 × 0.8 mm1/2"2 3/8"Metric
    		4.2 mm
    		0.1653"SquarePlug22671A7300000Plug38296A2400000
    M6 × 1 mm5/8"2 1/2"Metric
    		5 mm
    		0.1968"SquarePlug32671A7400000Plug38296A2500000
    M7 × 1 mm11/16"2 23/32"Metric
    		6 mm
    		0.2362"SquarePlug32671A8200000Plug38296A2600000
    M8 × 1 mm11/16"2 23/32"Metric
    		6.9 mm
    		0.2716"SquarePlug32671A8300000Plug38296A2700000
    M8 × 1.25 mm11/16"2 23/32"Metric
    		6.7 mm
    		0.2637"SquarePlug32671A7500000Plug38296A2800000
    M10 × 1.25 mm3/4"2 15/16"Metric
    		8.7 mm
    		0.3425"SquarePlug32671A8400000Plug38296A2900000
    M10 × 1.5 mm3/4"2 15/16"Metric
    		8.5 mm
    		0.3346"SquarePlug32671A7600000Plug38296A3100000
    M12 × 1.25 mm15/16"3 3/8"Metric
    		10.8 mm
    		0.4251"SquarePlug32671A8500000Plug38296A3200000
    M12 × 1.75 mm15/16"3 3/8"Metric
    		10.2 mm
    		0.4015"SquarePlug32671A7700000Plug38296A3300000
    M14 × 1.5 mm1"3 19/32"Metric
    		12.5 mm
    		0.4921"SquarePlug32671A8600000—————0
    M14 × 2 mm1"3 19/32"Metric
    		12 mm
    		0.4724"SquarePlug32671A8700000—————0
    M16 × 1.5 mm1 3/32"3 13/16"Metric
    		14.5 mm
    		0.5709"SquarePlug32671A8800000—————0
    M16 × 2 mm1 3/32"3 13/16"Metric
    		14 mm
    		0.5512"SquarePlug32671A8900000—————0
    M18 × 1.5 mm1 3/32"4 1/32"Metric
    		16.5 mm
    		0.6496"SquarePlug32671A9100000—————0
    M18 × 2.5 mm1 7/32"4 1/32"Metric
    		15.5 mm
    		0.6102"SquarePlug32671A9200000—————0
    M20 × 1.5 mm1 7/32"4 15/32"Metric
    		18.5 mm
    		0.7283"SquarePlug32671A11000000—————0
    M20 × 2.5 mm1 7/32"4 15/32"Metric
    		17.5 mm
    		0.689"SquarePlug32671A12000000—————0
    M22 × 1.5 mm1 7/32"4 11/16"Metric
    		20.5 mm
    		0.8071"SquarePlug32671A13000000—————0
    M22 × 2.5 mm1 7/32"4 11/16"Metric
    		19.5 mm
    		0.7677"SquarePlug32671A14000000—————0
    M24 × 3 mm1 7/32"4 29/32"Metric
    		21 mm
    		0.8268"SquarePlug32671A16000000—————0
    M30 × 1.5 mm1 7/32"5 7/16"Metric
    		28.5 mm
    		1.122"SquarePlug42671A19000000—————0
    M30 × 3.5 mm1 7/32"5 7/16"Metric
    		26.5 mm
    		1.0433"SquarePlug42671A21000000—————0
     

    Chip-Clearing Pipe and Conduit Taps for Steel and Stainless Steel

    Made of a high-vanadium alloy, these taps are harder and more wear-resistant than other high-speed steel taps. The widely spaced flutes prevent buildup that can ruin threads and keep pipe and conduit from making strong connections. Also known as interrupted-thread taps.
    NPT ThreadAbout NPT Thread
    Image of Product. Front orientation. Taps. Chip-Clearing Pipe and Conduit Taps for Steel and Stainless Steel.
    Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.
    Drill Bit
    Plug Chamfer
    Pipe
    Size
    Thread
    Lg.
    Overall
    Lg.
    No. of
    Flutes
    Threads
    per In.
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Cobalt Steel
     
    Titanium Nitride (TiN) Coated
    1/16
    		11/16"2 1/8"427C
    		0.242"Square2663A41000000
    1/8
    		3/4"2 1/8"427Q
    		0.332"Square2663A3800000
    1/4
    		1 1/16"2 7/16"4187/16"
    		0.4375"Square2663A4300000
    3/8
    		1 1/16"2 9/16"4189/16"
    		0.5625"Square2663A4400000
    1/2
    		1 3/8"3 1/8"41445/64"
    		0.7031"Square2663A45000000
    3/4
    		1 3/8"3 1/4"41429/32"
    		0.9063"Square2663A46000000
    1
    		1 3/4"3 3/4"411 1/21 9/64"
    		1.1406"Square2663A47000000
     
    NPTF ThreadAbout NPTF Thread
    Image of Product. Front orientation. Taps. Chip-Clearing Pipe and Conduit Taps for Steel and Stainless Steel.
    Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.
    Drill Bit
    Plug Chamfer
    Pipe
    Size
    Thread
    Lg.
    Overall
    Lg.
    No. of
    Flutes
    Threads
    per In.
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Cobalt Steel
     
    Titanium Nitride (TiN) Coated
    1/8
    		3/4"2 1/8"427Q
    		0.332"Square2663A39000000
    1/4
    		1 1/16"2 7/16"4187/16"
    		0.4375"Square2663A5300000
    3/8
    		1 1/16"2 9/16"4189/16"
    		0.5625"Square2663A5400000
    3/4
    		1 3/8"3 1/4"41429/32"
    		0.9063"Square2663A56000000
     

    Chip-Clearing Taps for Aluminum, Brass, and Bronze

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Aluminum, Brass, and Bronze, Spiral Flute for Through Holes.

    Spiral Flute for Through Holes

    Long, gummy strands from soft metals won’t get stuck on the tap or in the hole. With two layers of slippery coating over spiral flutes, these taps prevent chip buildup that can harm the threads and the tap.
    Cobalt Steel—Tough and wear resistant, cobalt taps last twice as long as high-speed steel. They also can run at higher temperatures without damage to their cutting edges.
    Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.
    Spiral Flute for Through Holes—Left-hand flutes push chips ahead of the tap and out of through holes.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Spiral Flute for
    Through Holes
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Titanium Nitride (TiN) Coated/Chromium Carbide (CrC) Coated
    2-56
    		5/16"1 49/64"UNC
    		51 Ga.
    		0.067"SquarePlug22687A41000000
    4-40
    		5/16"2 13/64"UNC
    		43 Ga.
    		0.089"SquarePlug22687A4200000
    5-40
    		5/16"2 13/64"UNC
    		38 Ga.
    		0.1015"SquarePlug22687A4300000
    6-32
    		11/32"2 13/64"UNC
    		36 Ga.
    		0.1065"SquarePlug22687A4400000
    8-32
    		7/16"2 31/64"UNC
    		29 Ga.
    		0.136"SquarePlug22687A4500000
    10-24
    		15/32"2 49/64"UNC
    		25 Ga.
    		0.1495"SquarePlug22687A4600000
    10-32
    		15/32"2 49/64"UNF
    		21 Ga.
    		0.159"SquarePlug22687A4700000
    1/4"-20
    		19/32"3 5/32"UNC
    		7 Ga.
    		0.201"SquarePlug22687A4800000
    1/4"-28
    		19/32"3 5/32"UNF
    		3 Ga.
    		0.213"SquarePlug22687A4900000
    5/16"-18
    		19/32"3 35/64"UNC
    		F
    		0.257"SquarePlug22687A5100000
    3/8"-16
    		3/4"3 15/16"UNC
    		5/16"
    		0.3125"SquarePlug22687A5300000
    7/16"-14
    		23/32"3 15/16"UNC
    		U
    		0.368"SquarePlug32687A5500000
    1/2"-13
    		29/32"4 21/64"UNC
    		27/64"
    		0.4219"SquarePlug32687A5700000
    1/2"-20
    		29/32"4 21/64"UNF
    		29/64"
    		0.4531"SquarePlug32687A5800000
    M3 × 0.5 mm5/16"2 13/64"Metric
    		2.5 mm
    		0.0984"SquarePlug22673A7100000
    M3.5 × 0.6 mm11/32"2 13/64"Metric
    		2.9 mm
    		0.1142"SquarePlug22673A7200000
    M4 × 0.7 mm7/16"2 31/64"Metric
    		3.3 mm
    		0.1299"SquarePlug22673A7300000
    M5 × 0.8 mm15/32"2 49/64"Metric
    		4.2 mm
    		0.1654"SquarePlug22673A7400000
    M6 × 1 mm15/32"3 5/32"Metric
    		5 mm
    		0.1968"SquarePlug22673A7500000
    M7 × 1 mm19/32"3 35/64"Metric
    		6 mm
    		0.2362"SquarePlug22673A7600000
    M8 × 1.25 mm19/32"3 35/64"Metric
    		6.7 mm
    		0.2638"SquarePlug22673A7800000
    M10 × 1.25 mm23/32"3 15/16"Metric
    		8.7 mm
    		0.3425"SquarePlug22673A7900000
    M10 × 1.5 mm23/32"3 15/16"Metric
    		8.5 mm
    		0.3346"SquarePlug22673A8100000
    M12 × 1.25 mm27/32"4 21/64"Metric
    		10.8 mm
    		0.4251"SquarePlug32673A8200000
    M12 × 1.5 mm27/32"4 21/64"Metric
    		10.5 mm
    		0.4133"SquarePlug32673A8300000
    M12 × 1.75 mm27/32"4 21/64"Metric
    		10.2 mm
    		0.4016"SquarePlug32673A8400000
     

    Chip-Clearing Taps for Nickel

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Nickel, Spiral Flute for Through Holes.

    Spiral Flute for Through Holes

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Nickel, Spiral Flute for Blind Holes.

    Spiral Flute for Blind Holes

    Avoid heat buildup that can deform material and prematurely wear taps when threading nickel alloys. The body on these taps narrows closer to the flutes for better coolant flow and less contact with the workpiece. Spiral flutes prevent stuck chips that can slow you down and decrease the quality of the threads.
    Cobalt Steel—Tough and wear resistant, cobalt taps last twice as long as high-speed steel. They also can run at higher temperatures without damage to their cutting edges.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.
    Spiral Flute for Through Holes—Left-hand flutes push chips ahead of the tap and out of through holes.
    Spiral Flute for Blind Holes—Pull chips back toward the tap so they won't build up in blind holes.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Spiral Flute for
    Through Holes
    Spiral Flute for Blind Holes
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Black Oxide
    4-40
    		9/16"1 7/8"UNC
    		43 Ga.
    		0.089"Square—————0Plug32626A12000000
    4-48
    		9/16"1 7/8"UNF
    		42 Ga.
    		0.0935"SquarePlug225595A73000000Plug32626A1300000
    5-40
    		3/8"1 15/16"UNC
    		38 Ga.
    		0.1015"SquarePlug325595A7400000—————0
    5-40
    		5/8"1 15/16"UNC
    		38 Ga.
    		0.1015"Square—————0Plug32626A1400000
    6-32
    		3/8"2"UNC
    		36 Ga.
    		0.1065"SquarePlug325595A7500000Plug32626A1500000
    6-40
    		3/8"2"UNF
    		33 Ga.
    		0.113"SquarePlug325595A7600000—————0
    6-40
    		13/32"2"UNF
    		33 Ga.
    		0.113"Square—————0Plug32626A9900000
    8-32
    		5/16"2 1/8"UNC
    		29 Ga.
    		0.136"SquarePlug325595A7700000Plug32626A1700000
    8-36
    		3/8"2 1/8"UNF
    		29 Ga.
    		0.136"SquarePlug325595A6200000—————0
    10-24
    		15/32"2 3/8"UNC
    		25 Ga.
    		0.1495"SquarePlug325595A7800000Plug32626A1900000
    10-32
    		15/32"2 3/8"UNF
    		21 Ga.
    		0.159"SquarePlug325595A7900000Plug32626A2200000
    12-24
    		1/2"2 3/8"UNC
    		16 Ga.
    		0.177"SquarePlug325595A6300000—————0
    12-28
    		7/16"2 3/8"UNF
    		15 Ga.
    		0.18"Square—————0Plug32626A9800000
    1/4"-20
    		7/16"2 1/2"UNC
    		7 Ga.
    		0.201"SquarePlug325595A8100000Plug32626A2500000
    1/4"-28
    		7/16"2 1/2"UNF
    		3 Ga.
    		0.213"SquarePlug325595A8200000Plug32626A2800000
    5/16"-18
    		1/2"2 23/32"UNC
    		F
    		0.257"SquarePlug325595A8300000Plug32626A3200000
    5/16"-24
    		1/2"2 23/32"UNF
    		I
    		0.272"SquarePlug325595A8400000Plug32626A3500000
    3/8"-16
    		19/32"2 15/16"UNC
    		5/16"
    		0.3125"SquarePlug325595A8500000Plug32626A3800000
    3/8"-24
    		19/32"2 15/16"UNF
    		Q
    		0.332"SquarePlug325595A8600000Plug32626A4200000
    7/16"-14
    		23/32"3 5/32"UNC
    		U
    		0.368"SquarePlug325595A8700000Plug32626A4500000
    7/16"-20
    		23/32"3 5/32"UNF
    		25/64"
    		0.3906"SquarePlug325595A8800000Plug32626A4600000
    1/2"-13
    		25/32"3 3/8"UNC
    		27/64"
    		0.4219"SquarePlug325595A8900000Plug32626A4800000
    1/2"-20
    		25/32"3 3/8"UNF
    		29/64"
    		0.4531"SquarePlug325595A9100000Plug32626A5200000
    9/16"-12
    		27/32"3 19/32"UNC
    		31/64"
    		0.4844"SquarePlug325595A6500000—————0
    9/16"-18
    		27/32"3 19/32"UNF
    		33/64"
    		0.5156"SquarePlug425595A6600000—————0
    5/8"-11
    		29/32"3 13/16"UNC
    		17/32"
    		0.5313"SquarePlug325595A9200000Plug32626A55000000
    5/8"-18
    		29/32"3 13/16"UNF
    		37/64"
    		0.5781"SquarePlug325595A93000000—————0
    5/8"-18
    		1 5/16"3 13/16"UNF
    		37/64"
    		0.5781"Square—————0Plug32626A57000000
    3/4"-10
    		1"4 1/4"UNC
    		21/32"
    		0.6563"SquarePlug325595A94000000—————0
    3/4"-10
    		1 19/32"4 1/4"UNC
    		21/32"
    		0.6563"Square—————0Plug32626A58000000
    3/4"-16
    		1"4 1/4"UNF
    		11/16"
    		0.6875"SquarePlug325595A95000000Plug32626A59000000
    M3 × 0.5 mm5/8"1 15/16"Metric
    		2.5 mm
    		0.0984"SquarePlug32676A1100000Plug38327A4100000
    M3.5 × 0.6 mm3/8"2"Metric
    		2.9 mm
    		0.1142"SquarePlug32676A1200000Plug38327A4200000
    M4 × 0.7 mm5/16"2 1/8"Metric
    		3.3 mm
    		0.1299"SquarePlug32676A1300000Plug38327A4300000
    M5 × 0.8 mm15/32"2 3/8"Metric
    		4.2 mm
    		0.1653"SquarePlug32676A1400000Plug38327A4400000
    M6 × 1 mm15/32"2 1/2"Metric
    		5 mm
    		0.1968"SquarePlug32676A1500000Plug38327A4500000
    M7 × 1 mm17/32"2 23/32"Metric
    		6 mm
    		0.2362"SquarePlug32676A1600000Plug38327A4600000
    M8 × 1 mm15/32"2 23/32"Metric
    		6.9 mm
    		0.2716"SquarePlug32676A1700000Plug38327A4700000
    M8 × 1.25 mm15/32"2 23/32"Metric
    		6.7 mm
    		0.2637"SquarePlug32676A1800000Plug38327A4800000
    M10 × 1.25 mm17/32"2 15/16"Metric
    		8.7 mm
    		0.3425"SquarePlug32676A1900000Plug38327A4900000
    M10 × 1.5 mm17/32"2 15/16"Metric
    		8.5 mm
    		0.3346"SquarePlug32676A2100000Plug38327A5100000
    M12 × 1.25 mm25/32"3 3/8"Metric
    		10.8 mm
    		0.4251"SquarePlug32676A2200000Plug38327A5200000
    M12 × 1.75 mm25/32"3 3/8"Metric
    		10.2 mm
    		0.4015"SquarePlug32676A2300000Plug38327A5300000
    M14 × 1.5 mm27/32"3 19/32"Metric
    		12.5 mm
    		0.4921"SquarePlug32676A2400000—————0
    M14 × 2 mm27/32"3 19/32"Metric
    		12 mm
    		0.4724"SquarePlug32676A2500000—————0
    M16 × 1.5 mm29/32"3 13/16"Metric
    		14.5 mm
    		0.5709"SquarePlug32676A26000000—————0
    M16 × 2 mm29/32"3 13/16"Metric
    		14 mm
    		0.5512"SquarePlug32676A2700000—————0
     

    Long-Reach Chip-Clearing Taps

    Image of ProductInUse. Front orientation. Taps. Long-Reach Chip-Clearing Taps.
    Push out chips while threading holes that are hard to reach or obstructed. These taps are double the length of standard taps to reach inside machines or through assemblies such as pulleys and belts. The flute design prevents buildup to protect the quality of the threads and avoid damage to the tap. Since you don’t need to reverse these taps to extract chips, they also create threads faster.
    Cobalt Steel—These taps resist higher temperatures and and last twice as long as high-speed steel taps. They thread hard materials such as iron and hardened steel without damaging their cutting edges.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.
    Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Shank
    Spiral-Point Flute
    for Through Holes
    Thread
    Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Type
    Dia.
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Black Oxide
    2-56
    		7/16"6"UNC
    		51 Ga.
    		0.067"Square0.141"Plug22589A17000000
    4-40
    		5/16"6"UNC
    		43 Ga.
    		0.089"Square0.141"Plug22589A1900000
    6-32
    		3/8"6"UNC
    		36 Ga.
    		0.1065"Square0.141"Plug22589A2100000
    8-32
    		3/8"6"UNC
    		29 Ga.
    		0.136"Square0.168"Plug22589A2200000
    10-24
    		1/2"6"UNC
    		25 Ga.
    		0.1495"Square0.194"Plug22589A2300000
    10-32
    		1/2"6"UNF
    		21 Ga.
    		0.159"Square0.194"Plug22589A2400000
    1/4"-20
    		5/8"6"UNC
    		7 Ga.
    		0.201"Square0.255"Plug32589A2500000
    1/4"-28
    		5/8"6"UNF
    		3 Ga.
    		0.213"Square0.255"Plug32589A2600000
    5/16"-18
    		11/16"6"UNC
    		F
    		0.257"Square0.318"Plug32589A2700000
    5/16"-24
    		11/16"6"UNF
    		I
    		0.272"Square0.318"Plug32589A2800000
    3/8"-16
    		3/4"6"UNC
    		5/16"
    		0.3125"Square0.381"Plug32589A2900000
    3/8"-24
    		3/4"6"UNF
    		Q
    		0.332"Square0.381"Plug32589A3100000
    7/16"-14
    		7/8"6"UNC
    		U
    		0.368"Square0.323"Plug32589A3200000
    7/16"-20
    		7/8"6"UNF
    		25/64"
    		0.3906"Square0.323"Plug32589A3300000
    1/2"-13
    		15/16"6"UNC
    		27/64"
    		0.4219"Square0.367"Plug32589A3400000
    1/2"-20
    		15/16"6"UNF
    		29/64"
    		0.4531"Square0.367"Plug32589A3500000
    5/8"-11
    		1 3/32"6"UNC
    		17/32"
    		0.5313"Square0.48"Plug32589A49000000
     
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