M7 Taps | McMaster-Carr

Cut and repair threads and drill holes in many different sizes. Tap and die wrenches are included. The dies are hex shaped for use with conventional wrenches. The taps are made of carbon steel and are recommended for thread repair and occasional tapping.

Taper Chamfer—Taper chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes.

Plug Chamfer—Plug chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.

	Drill Bit Sizes Included	Container Type	Includes	Tap Chamfer Type		Each
Carbon Steel







	Right-Hand Thread

	117	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/8"-28, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/8"-28, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	5/64", 7/64", 5/32", 1/4", 19/64", 5/16", 21/64", 3/8", 25/64", 13/32", 27/64", 29/64", 43 ga., 39 ga., 36 ga., 30 ga., 29 ga., 25 ga., 21 ga., 20 ga., 16 ga., 9 ga., 7 ga., 3 ga., B, F, H, I, J, O, Q, R, S, U, Z	Plastic Case	Die Wrench (2), Extractor (5), Tap Wrench (3), Thread Gauge (2)	Taper, Plug	82955A11	0000000

Tap and Die Sets

Use a single set for many sizes of internal and external threads. The taps and dies are for use on most metal and plastic.

Carbon Steel—Carbon steel taps are for thread repair and occasional tapping.

Plug Chamfer—Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper-chamfer taps. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.

Taper Chamfer—Taper-chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes.

Hex—Hex-shaped dies are for thread repair and can be used with conventional wrenches.

	Die Shape	Die Sizes Included	Wd.	Container Type	Includes		Each
Carbon Steel Taps and Dies







	Right-Hand Thread

	24	1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M5 × 0.80 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.25 mm, M9 × 1.25 mm, M10 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	Plug, Taper	Hex	1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M5 × 0.80 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.25 mm, M9 × 1.25 mm, M10 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	1"	Plastic Case	Die Wrench, Tap Wrench	26025A41	0000000


	40	6-32, 8-32, 10-24, 1/8"-27, 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13, M4 × 0.75 mm, M5 × 0.80 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M12 × 1.75 mm	Plug, Taper	Hex	6-32, 8-32, 10-24, 1/8"-27, 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13, M4 × 0.75 mm, M5 × 0.80 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M12 × 1.75 mm	5/8", 1"	Plastic Case	Die Wrench (2), Tap Wrench (3), Thread Gauge	2668A36	000000
	40	1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	Plug, Taper	Hex	1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	5/8", 1"	Plastic Case	Die Wrench (2), Tap Wrench (3), Thread Gauge	2647A12	000000
	52	1/4"-19, 1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.25 mm, M14 × 2.00 mm, M16 × 1.50 mm, M16 × 2.00 mm, M18 × 1.50 mm, M18 × 2.50 mm	Plug, Taper	Hex	1/8"-28, 1/4"-19, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.25 mm, M14 × 2.00 mm, M16 × 1.50 mm, M16 × 2.00 mm, M18 × 1.50 mm, M18 × 2.50 mm	1", 1 7/16"	Plastic Case	Die Wrench (2), Tap Wrench (3), Thread Gauge	2726A66	000000
	65	1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.25 mm, M14 × 1.50 mm, M14 × 2.00 mm, M16 × 1.50 mm, M16 × 2.00 mm, M18 × 1.50 mm, M18 × 2.50 mm, M20 × 2.50 mm, M22 × 1.50 mm, M24 × 2.00 mm, M24 × 3.00 mm	Plug, Taper	Hex	1/8"-28, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.25 mm, M14 × 1.50 mm, M14 × 2.00 mm, M16 × 1.50 mm, M16 × 2.00 mm, M18 × 1.50 mm, M18 × 2.50 mm, M20 × 2.50 mm, M22 × 1.50 mm, M24 × 2.00 mm, M24 × 3.00 mm	5/8", 1", 1 3/16", 1 7/16", 1 13/16"	Plastic Case	Die Wrench (4), Tap Wrench (4), Thread Gauge	2726A68	000000

Tap Sets

These sets include a variety of taps for threading holes so screws, bolts, and rods fit snugly.

High-Speed Steel—Single Thread Size Sets

Taper, Plug, and Bottoming

Chamfer Set

The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic. These sets include one of each chamfer type: Taper for starting holes and threading through holes; plug for through holes and blind holes; and bottoming for cutting the closest to the bottom of any hole.

Uncoated—The economical choice, these won't last as long as coated taps.

Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.

							Taper Chamfer, Plug Chamfer, Bottoming Chamfer
	No. of Pieces	Thread Size	Thread Type	Container Type	No. of Flutes	Shank Type		Each
Uncoated



		3	M7 × 1 mm	Metric	Plastic Case	4	Square	8305A528	000000


		Titanium Nitride (TiN) Coated



				3	M7 × 1 mm	Metric	Plastic Case	4	Square	26475A19	00000

Carbon Steel—Single Thread Size Sets

Taper, Plug, and Bottoming

Chamfer Set

The economical choice for occasional hand tapping. These work on most metals and plastic but will dull more quickly than other taps. Sets include one each chamfer type: Taper for starting holes and through holes; plug for through holes and blind holes; and bottoming for cutting the closest to the bottom of any hole.

							Taper Chamfer, Plug Chamfer, Bottoming Chamfer
	No. of Pieces	Thread Size	Thread Type	Container Type	No. of Flutes	Shank Type		Each
Uncoated



		3	M7 × 1 mm	Metric	Plastic Case	4	Square	26015A535	000000

Carbon Steel—Multiple Thread Size Sets

Plug Chamfer Set

The economical choice for occasional hand tapping. These work on most metals and plastic but will dull more quickly than other taps. Sets include multiple sizes of plug chamfer taps for through holes and blind holes.

						Plug Chamfer
	No. of Pieces	Thread Size	Thread Type	Container Type	Shank Type		Each
Uncoated



		113	5 each of sizes M3 × 0.50 mm, M3 × 0.60 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm; M12 × 1.25 mm, M12 × 1.50 mm, and M12 × 1.75 mm, 1 each of sizes M14 × 1.25 mm, M14 × 1.50 mm; M5 × 0.90 mm, M6 × 1.00 mm, M6.3 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm; M9 × 0.75 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.00 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm; M14 × 2.00 mm, M16 × 1.50 mm, M16 × 2.00 mm, M18 × 2.50 mm, M20 × 2.50 mm, and M24 × 3.00 mm	Metric	Plastic Case	Square	2688A13	0000000

Tap, Die, and Thread File Sets

Repair screw threads in a wide range of sizes. The dies are hex shaped for use with conventional wrenches. The taps have a square shank that's compatible with tap wrenches and tap holders for drill presses and drilling machines. With a plug chamfer, all taps have 3-5 chamfered threads and are suitable for thread repair in both through holes and closed-end holes.

	File Sizes Included	Container Type		Each
Carbon Steel







	Right-Hand Thread

	48	1/2"-13, 1/2"-20, 1/4”-20, 1/4”-28, 3/8"-16, 3/8"-24, 5/16"-24, 5/16”-18, 7/16"-14, 7/16"-20, 9/16"-18, 9/16”-12, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.00 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.25 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.50 mm	1/2"-13, 1/2"-20, 1/4"-20, 1/4"-28, 3/8"-16, 3/8"-24, 5/16"-18, 5/16"-24, 5/8"-11, 5/8"-18, 7/16"-14, 7/16"-20, 9/16"-12, 9/16"-18, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.00 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.25 mm, M12 × 1.50 mm, M12 × 1.75 mm, M14 × 1.50 mm	For 0.75 to 3 mm thread pitches, For 11 to 24 threads per inch	Plastic Case	25325A15	0000000

Taps

Cut threads into holes so screws, bolts, and rods fit snugly. Our basic taps have straight flutes that are good for most jobs.

High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.

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.

Carbon Steel—The economical choice for occasional hand tapping. These work on most metals and plastic but will dull more quickly than other taps.

Uncoated—The economical choice, these won't last as long as coated taps.

Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.

Taper Chamfer—Good for both starting holes and threading through holes. These taps have the longest taper to gradually engage with the material, reducing the force needed to turn them. They can't reach the bottom of blind holes, however, so you will likely need to finish with a bottoming-chamfer tap.

Plug Chamfer—Our go-to chamfer type, these thread both through holes and blind holes. The tapered section is shorter than a taper chamfer and longer than bottoming chamfer. As a result, they're easier to turn than bottoming taps but require more force than taper taps.

Bottoming Chamfer—Cut all the way to the bottom of blind holes with taps that have the shortest taper. Since these require the most force to turn, they’re often used to finish holes started by taper- or plug-chamfer taps.

Number of Flutes—Taps with fewer flutes have more space to capture chips, so you won’t have to clear them as often. However, they can be more difficult to keep straight in the hole.

Taps Sold as Sets—Include one tap of each chamfer type.

	Taps														Taps Sold as Sets
						Drill Bit			Taper Chamfer		Plug Chamfer		Bottoming Chamfer
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type		Each		Each		Each	No. of Taps		Each
High-Speed Steel







				Uncoated

				M7 × 1 mm	1 1/8"	2 23/32"	Metric	4	6	0.2362"	Square	8305A18	000000	8305A38	000000	8305A58	000000	3	8305A528	000000




						Titanium Nitride (TiN) Coated

						M7 × 1 mm	1 1/8"	2 23/32"	Metric	4	6	0.2362"	Square	26475A41	00000	26475A54	00000	26475A94	00000	3	26475A19	00000


						Cobalt Steel







										Uncoated

										M7 × 1 mm	21/32"	2 7/8"	Metric	4	6	0.2362"	Square	———	0	2662A111	00000	———	0	—	———	0


										Carbon Steel







														Uncoated

														M7 × 1 mm	1"	2 23/32"	Metric	4	6	0.2362"	Square	———	0	25995A531	0000	———	0	—	———	0

Drill Out Tap Extractor Sets for Screw Thread Taps

After using a large-diameter bit to drill a starter hole in a broken tap, drill out the tap with one of these tools. Sets include multiple extractors for use with different tap sizes and two picks for removing the remains.

No. of Pieces	Includes	For Tap Size	Overall Lg.	OD	Material	Container Type		Each
7	Four Tap Extractors, Pin Vise, Two Picks	No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/4", 5/16", 3/8", 7/16", 1/2", M3, M3.5, M4, M5, M6, M7, M8, M10, M12	1 1/4" 1 1/2" 2" 2 1/2"	1/8" 5/64" 3/16" 1/4"	Carbide	Plastic Case	2624A25	0000000

Tap Extractor Sets for Screw Thread Taps

To extract taps of different sizes, these sets include multiple extractors. Fingers on the extractor grip the flutes on a broken tap. Use with a tap wrench to remove taps with straight flutes from the workpiece.

No. of Pieces	For Three-Flute Tap Size	For Four-Flute Tap Size	Material	Container Type	For Number of Tap Flutes		Each
6	—	No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5	Steel	Plastic Case	4	2561A421	0000000
6	—	No. 14, 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16	Steel	Plastic Case	4	2561A422	000000
6	—	5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", M7, M8, M9, M10, M11, M12, M12.5, M14, M16	Steel	Plastic Case	4	2561A423	000000
11	No. 5, No. 6, 1/8", M3, M3.5	No. 8, No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", M4, M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16, M18, M19, M20, M22, M24, M25	Steel	Plastic Case	3, 4	2561A424	000000
13	No. 4, No. 5, No. 6, 1/8", M3, M3.5	No. 8, No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", M4, M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16, M18, M19, M20	Steel	Plastic Case	3, 4	2561A425	000000
15	No. 4, No. 5, No. 6, 1/8", M3, M3.5	No. 8, No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", M2, M4, M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16, M18, M19, M20, M22, M24, M25	Steel	Plastic Case	3, 4	2561A426	000000

Chip-Clearing Taps

Spiral-Point Flute for Through Holes

Spiral Flute for Blind Holes

Remove long, stringy chips to produce cleaner threads than standard 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.

Uncoated—The economical choice, these won't last as long as coated taps.

Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.

Titanium Carbon Nitride (TiCN) Coated—Resist heat, chipping, and wear for three times the life of 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, mm	Decimal Size Equiv.	Shank Type	Chamfer Type	No. of Flutes		Each	Chamfer Type	No. of Flutes		Each
High-Speed Steel







				Uncoated

				M7 × 1 mm	1 1/8"	2 23/32"	Metric	6	0.2362"	Square	Plug	2	8302A18	000000	—	—	———	0




						Titanium Nitride (TiN) Coated

						M7 × 1 mm	1 1/8"	2 23/32"	Metric	6	0.2362"	Square	Plug	2	2703A742	00000	—	—	———	0




								Titanium Carbon Nitride (TiCN) Coated

								M7 × 1 mm	5/16"	3 9/64"	Metric	6.2	0.243"	Square	—	—	———	0	Bottoming	3	2523A115	000000


								M7 × 1 mm	1 1/8"	2 23/32"	Metric	6	0.2362"	Square	Plug	2	2605A242	00000	—	—	———	0

Chip-Clearing Taps for Steel and Stainless Steel

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.

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-Point Flute for Through Holes		Spiral Flute for Blind Holes
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	Chamfer Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type		Each		Each
High-Speed Steel







				Black Oxide

				M7 × 1 mm	11/16"	2 23/32"	Metric	Plug	3	6	0.2362"	Square	2671A82	000000	8296A26	000000

Drill Out Tap Extractors for Screw Thread Taps

After using a large-diameter bit to drill a starter hole in a broken tap, drill out the tap with one of these tools. Remove the remains with a scriber or pick.

For Tap Size	OD	Overall Lg.	Material		Each
1/4", 5/16", M6, M7	3/16"	2"	Carbide	2624A13	000000

Chip-Clearing Taps for Aluminum, Brass, and Bronze

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, mm	Decimal Size Equiv.	Shank Type	Chamfer Type	No. of Flutes		Each
Cobalt Steel







				Titanium Nitride (TiN) Coated/Chromium Carbide (CrC) Coated

				M7 × 1 mm	19/32"	3 35/64"	Metric	6	0.2362"	Square	Plug	2	2673A76	000000

Long-Reach Taps

Thread holes that are hard to access or where obstructions make it difficult to turn a tap wrench. About twice as long other taps, these get you inside machines or through assemblies such as pulleys and belts. They have straight flutes that are good for most jobs.

High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.

						Drill Bit		Shank		Taper Chamfer		Plug Chamfer
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Type	Dia.		Each		Each
High-Speed Steel







				Uncoated

				M7 × 1 mm	1 1/8"	6"	Metric	4	6.1	0.2401"	Square	0.318"	2582A481	000000	2582A424	000000

Quick-Change Hex Shank Drill Taps for Drills and Screwdrivers

Save time when you need to change drill taps frequently. The grooved shank snaps directly into drills, power screwdrivers, and other tools that accept a 1/4" hex shank. However, they’re not rated for impact drivers. With a drill bit point to drive into the workpiece, these taps can drill and tap holes in a single step. They’re made of high-speed steel and are for use on most metal and plastic.

Their spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. All have a plug chamfer with 3-5 chamfered cutting threads, so they’re suitable for start-to-finish tapping.

Uncoated High-Speed Steel—Uncoated taps are strong enough for most tapping jobs but have the shortest tool life.

	Thread			Drill Bit								Plug Chamfer
	Size	Lg.	Overall Lg.	Size, mm	Decimal Size Equiv.	Point Angle	Flute Type	No. of Flutes	Thread Type	Pitch Dia. Limit	Hex Shank Size		Each
Uncoated High-Speed Steel



		M7 × 1 mm	15/16"	3 23/32"	6	0.2362"	118°	Spiral	2	Metric	D5	1/4"	3464A54	000000

Tap Extractors for Screw Thread Taps

Fingers on the extractor grip the flutes on a broken tap. Use with a tap wrench to remove taps with straight flutes from the workpiece without damaging the surrounding threads.

Tap Extractors						Replacement Tap Extractor Fingers
For Tap Size	Material	Square Shank Size	Choose a Number of Tap Flutes		Each	Choose a Number of Tap Flutes	Pkg. Qty.		Pkg.
5/16", M7, M8	Steel	0.186"	2, 3, 4	2561A529	000000	2, 3, 4	12	2561A554	000000

Left-Hand Thread Tap Sets

Three chamfer types in one set create a snug fit with left-hand fasteners that secure counter-clockwise rotating parts. Left-hand threads keep components such as flywheels and propellers from loosening and spinning off. These taps have straight flutes that are good for most jobs.

High-Speed Steel—Single Thread Size Sets

Uncoated—The economical choice, these won't last as long as coated taps.

						Taper Chamfer, Plug Chamfer, Bottoming Chamfer
	No. of Pieces	Thread Size	Thread Type	No. of Flutes	Shank Type		Each
Uncoated



		3	M7 × 1 mm	Metric	4	Square	26565A76	000000

Hex-Bit Taps

You only need one tool to turn these taps and install screws. The _1/4" hex shank fits hand or powered screwdrivers for threading holes. Then switch to a screwdriver bit to finish the job. To tap in hard-to-reach spots, add a bit extension. Taps have straight flutes that are good for most jobs.

High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.

Uncoated—The economical choice, these won't last as long as coated taps.

						Drill Bit				Plug Chamfer
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type	Hex Shank Size		Each
High-Speed Steel







				Uncoated

				M7 × 1 mm	5/8"	1 1/2"	Metric	3	6	0.2362"	Hex	1/4"	1021N27	000000

Left-Hand Thread Taps

Create left-hand threads that prevent counter-clockwise rotating parts, such as flywheels and propellers, from loosening and spinning off. These taps have straight flutes that are good for most jobs.

High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.

Uncoated—The economical choice, these won't last as long as coated taps.

Taps Sold as Sets—Include one tap of each chamfer type.

	Taps														Taps Sold as Sets
						Drill Bit			Taper Chamfer		Plug Chamfer		Bottoming Chamfer
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type		Each		Each		Each	No. of Taps		Each
High-Speed Steel







				Uncoated

				M7 × 1 mm	1 1/8"	2 23/32"	Metric	4	6	0.2362"	Square	26565A16	000000	26565A36	000000	26565A56	000000	3	26565A76	000000

Chip-Clearing Taps for Nickel

Spiral Flute for Through 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	Chamfer Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type		Each		Each
Cobalt Steel







				Black Oxide

				M7 × 1 mm	17/32"	2 23/32"	Metric	Plug	3	6	0.2362"	Square	2676A16	000000	8327A46	000000

Helical Threaded Inserts with Installation Tools

Drill Bit, Installation Tool

and Through-Hole Tap

Quickly restore stripped threads—these inserts come with through-hole taps and installation tools. The tough coils on these inserts expand once installed to anchor in a tapped hole.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	For Max. Hole Dia.	No. of Inserts Included	Includes		Each
Pronged







	18-8 Stainless Steel

	M7 x 1 mm	10.5	7.25	0.281"	10	Drill Bit Installation Tool Through-Hole Tap	91732A950	000000

Helical Threaded Insert Assortments with Installation Tools

Repair damaged threads or create new ones. These convenient assortments include helical inserts, an installation tool for each thread size, a drill bit, and a tap. The inserts are also known as Heli-Coil inserts.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Drill Bit Size	For Max. Hole Dia.		Each
Pronged







	18-8 Stainless Steel

	18	Drill Bit Installation Tool M7×1 mm Thread × 10.5 mm Installed Lg. (6 Each) M7×1 mm Thread × 14 mm Installed Lg. (6 Each) M7×1 mm Thread × 7 mm Installed Lg. (6 Each) Through-Hole Tap	Coarse	9/32"	0.281"	91732A949	000000

Helical Insert Taps

Match the size of helical inserts so they fit tightly when installed in the hole.

High-Speed Steel—These taps resist heat and wear to stay sharp.

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			Plug Chamfer		Bottoming Chamfer
	For Insert Size	Thread Lg.	Overall Lg.	For Insert Thread Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type		Each		Each
High-Speed Steel







				Uncoated

				M7	1 1/4"	2 15/16"	Metric	4	7.3	0.2874"	Square	91709A203	000000	91709A536	000000