8-32 Dies | 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	Mfr.		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	Black & Decker	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.

High-Speed Steel—High-speed steel taps and dies last longer than carbon steel when used on similar material.

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	Mfr.		Each
Carbon Steel Taps and Dies







	Right-Hand Thread

	40	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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	Plug, Taper	Hex	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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	5/8", 1"	Plastic Case	Die Wrench (2), Tap Wrench (3), Thread Gauge	Black & Decker	2625A12	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	Black & Decker	2668A36	000000
	53	6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 1/4"-18	Plug, Taper	Hex	6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/4"-18, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16	1", 1 7/16"	Plastic Case	Die Wrench (2), Screwdriver, Tap Wrench (3), Thread Gauge	Black & Decker	25955A6	000000
	65	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 7/8"-9, 7/8"-14, 1"-8, 1"-14, 1/4"-18	Plug, Taper	Hex	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/4"-18, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 7/8"-14, 7/8"-9, 1"-8, 1"-14	5/8", 1", 1 7/16", 1 13/16"	Plastic Case	Die Wrench (4), Tap Wrench (4), Thread Gauge	Black & Decker	26075A71	000000


	High-Speed Steel Taps and Dies







					Right-Hand Thread

					40	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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	Plug	Hex	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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	1"	Plastic Case	Die Wrench, Screwdriver, Tap Wrench (3), Thread Gauge	Viking Norseman Drill	26055A64	000000


					58	6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 1/4"-18	Plug	Hex	6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/4"-18, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16	1", 1 7/16"	Plastic Case	Die Wrench (2), Extractor (5), Screwdriver, Tap Wrench (3), Thread Gauge	Viking Norseman Drill	26055A74	000000

Dies

Rotate these dies around studs and rods to create new fastener threads. A cut above lower-quality dies that can leave inferior threads, these are machined in the U.S. to precise dimensions for accuracy and consistency.

They are adjustable, so you can cut a shallow thread that makes it easier to get the die started on the first pass. Turn the set screw to open the die to its largest diameter. Then rotate the die with a round die wrench and adjust the screw as you make additional passes to reach the proper thread size.

Uncoated Carbon Steel—Our most economical dies, these are good for jobs that pop up. They work on most metal and plastic but will dull faster than high-speed steel dies.

Uncoated High-Speed Steel—The most versatile dies stay sharp and cut cleanly, even if you use them every day. They last much longer than carbon steel dies and you won’t have to work as hard to create threads.

	Dies								Die Wrenches
			Uncoated Carbon Steel			Uncoated High-Speed Steel
	Thread Size	Thread Type	Mfr.		Each	Mfr.		Each		Each
13/16" OD



		8-32	UNC	Cle-Line	2576A137	000000	Cle-Line	2602A13	000000	25565A19	00000


		1" OD



				8-32	UNC	Cle-Line	2576A142	00000	Widell Industries	2602A22	00000	25565A21	0000

Die Sets

A variety of sizes for adding fastener threads to studs and rods. A cut above lower-quality dies that can leave inferior threads, these are machined in the U.S. to precise dimensions for accuracy and consistency. Dies are adjustable, so you can create a shallow thread that makes it easier to get the die started on the first pass. Turn the set screw to open the die to its largest diameter. Then rotate the die with a round die wrench and adjust the screw as you make additional passes to reach the proper thread size.

Uncoated Carbon Steel—Our most economical dies, these are good for jobs that pop up. They work on most metal and plastic but will dull faster than high-speed steel dies.

	Dies							Die Wrenches
	No. of Dies	Thread Size	Thread Type	Container Type	Mfr.		Each		Each
Uncoated Carbon Steel







				13/16" OD

				6	2-56, 3-48, 4-40, 5-40, 6-32, 8-32	UNC	Plastic Case	Cle-Line	2576A82	0000000	25565A19	00000




						1" OD

						6	6-32, 8-32, 10-24, 1/4"-20, 5/16"-18, 3/8"-16	UNC	Plastic Case	Cle-Line	2576A84	000000	25565A21	0000


						Uncoated High-Speed Steel







										13/16" OD

										6	5-40, 6-32, 8-32, 10-24, 1/4"-20, 5/16"-18	UNC	Plastic Case	Cle-Line	2602A95	000000	25565A19	0000




												1" OD

												6	6-32, 8-32, 10-24, 1/4"-20, 5/16"-18, 3/8"-16	UNC	Plastic Case	Widell Industries	2602A97	000000	25565A21	0000

Left-Hand Dies

Make your own threads instead of searching for left-hand fasteners, which can be expensive and hard to find. A cut above lower-quality dies that can leave inferior threads, these are machined in the U.S. to precise dimensions for accuracy and consistency. They are adjustable, so you can create a shallow thread that makes it easier to get the die started on the first pass. Turn the set screw to open the die to its largest diameter. Then rotate the die with a round die wrench and adjust the screw as you make additional passes to reach the proper thread size.

Uncoated Carbon Steel—Our most economical dies, these are good for jobs that pop up. They work on most metal and plastic but will dull faster than high-speed steel dies.

	Dies							Die Wrenches
				Uncoated Carbon Steel		Uncoated High-Speed Steel
	Thread Size	Thread Type	Mfr.		Each		Each		Each
13/16" OD



		8-32	UNC	Widell Industries	2600A52	000000	2645A12	000000	25565A19	00000


		1" OD



				8-32	UNC	Widell Industries	2600A12	00000	2645A72	00000	25565A21	0000