5/64" Drill Bits | McMaster-Carr

Maintenance Length—Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. Also known as mechanics’ bits.

Extended Length—Drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron and titanium.

Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type	Pkg. Qty.		Pkg.
Jobbers' Length







				Black Oxide

				5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	1	2901A112	00000


				5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	12	2901A505	00000




						Titanium Nitride (TiN) Coated

						5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	1	29115A712	0000


						5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	12	29115A812	00000




								Titanium Aluminum Nitride (TiAlN) Coated

								5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	1	3202A45	0000


								5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	12	3202A27	00000




										Uncoated

										5/64"	0.0781"	2"	0.88"	Round	5/64"	Standard	1	8870A15	0000


										5/64"	0.0781"	2"	0.88"	Round	5/64"	Standard	12	8870A115	00000


										Short Length







														Black Oxide

														5/64"	0.0781"	1 3/4"	0.57"	Round	5/64"	Split	1	2896A13	0000


														5/64"	0.0781"	1 3/4"	0.57"	Round	5/64"	Split	12	2896A153	00000




																Titanium Nitride (TiN) Coated

5/64"	0.0781"															1 3/4"	0.57"	Round	5/64"	Split	1	2908A32	0000




		Uncoated

		5/64"	0.0781"													1 3/4"	0.57"	Round	5/64"	Standard	1	8947A112	0000


		Maintenance Length







																Gold Oxide

																5/64"	0.0781"	2"	1"	Round	5/64"	Split	1	87755A842	0000


																Extended Length







																		Black Oxide

																		5/64"	0.0781"	3 3/4"	1.88"	Round	5/64"	Standard	1	29315A117	0000




																		Titanium Nitride (TiN) Coated

																		5/64"	0.0781"	3 3/4"	2"	Round	5/64"	Standard	1	28965A813	0000




																				Uncoated

										5/64"										0.0781"	3 3/4"	2"	Round	5/64"	Standard	1	2939A62	0000

Cobalt Steel Drill Bits

Jobbers' Length

Round Shank

Short Length

Round Shank

Extended Length

Round Shank

Split

Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Short Length—The most rigid bits for drilling the straightest holes.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Uncoated—Polished to eject chips, these are also known as bright finish bits.

					Shank			Each		Package
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each	Pkg. Qty.		Pkg.
Jobbers' Length







				Titanium Nitride (TiN) Coated

				5/64"	0.0781"	2"	1"	Round	5/64"	Split	27995A512	00000	—	———	0




						Titanium Aluminum Nitride (TiAlN) Coated

						5/64"	0.0781"	1 7/8"	0.83"	Round	5/64"	Split	2753A124	00000	—	———	0




								Uncoated

								5/64"	0.0781"	2"	0.84"	Round	5/64"	Split	3069A13	0000	—	———	0


								Short Length







												Titanium Nitride (TiN) Coated

												5/64"	0.0781"	1 11/16"	0.57"	Round	5/64"	Split	2416A12	0000	—	———	0




														Uncoated

														5/64"	0.0781"	1 3/4"	0.57"	Round	5/64"	Split	28765A12	0000	12	28765A133	000000


														Extended Length







																		Uncoated

																		5/64"	0.0781"	3 3/4"	1.84"	Round	5/64"	Split	3063A112	00000	—	———	0

Left-Hand Cobalt Steel Drill Bits


Maintenance Length Round Shank	Split

The flutes spiral in the opposite direction of other bits and stay sharp longer than high-speed steel. They’re primarily used to remove stripped screws. Choose a bit that’s slightly smaller than the diameter of the screw’s head. Set your power tool to rotate in reverse. Slowly drill in the center of the screw head, maintaining constant pressure. As the bit penetrates, it will catch onto the screw and reverse it out of the hole. If the screw is badly stripped, you might need to punch a starter hole. Also known as reverse-flute bits.

Maintenance Length—Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. Also known as mechanics’ bits.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Uncoated—Polished to eject chips, these are also known as bright finish bits.

					Shank				Each
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		1-11	12-Up
Maintenance Length







				Titanium Nitride (TiN) Coated

				5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	3474A28	00000	00000




						Titanium Aluminum Nitride (TiAlN) Coated

						5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	3474A38	0000	0000




								Uncoated

								5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	3474A11	0000	0000

Carbide Drill Bits

Jobbers' Length

Round Shank

The hardest and most wear-resistant drill bits you can buy. Carbide bits stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so these bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.

Titanium Aluminum Nitride (TiAlN) Coated—No drill bits last longer. These are the best for high-speed, high-temperature drilling of very hard and abrasive materials, including titanium and fiberglass.

Uncoated—Excellent for a range of materials but won't last as long as coated bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Titanium Nitride (TiN) Coated

				5/64"	0.0781"	1 3/4"	0.7"	Round	5/64"	Four Facet	27515A35	000000




						Titanium Aluminum Nitride (TiAlN) Coated

						5/64"	0.0781"	1 3/4"	0.7"	Round	5/64"	Four Facet	8879A13	00000




								Uncoated

								5/64"	0.0781"	1 3/4"	0.7"	Round	5/64"	Four Facet	2956A12	00000

Left-Hand High-Speed Steel Drill Bits


Jobbers' Length Round Shank	Split

With flutes that spiral in the opposite direction of other bits, these are primarily used to remove stripped screws. Choose a bit that’s slightly smaller than the diameter of the screw’s head. Set your power tool to rotate in reverse. Slowly drill in the center of the screw head, maintaining constant pressure. As the bit penetrates, it will catch onto the screw and reverse it out of the hole. If the screw is badly stripped, you might need to punch a starter hole. Also known as reverse-flute bits. High-speed steel is the versatile choice for drilling most metals.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Gold Oxide

				5/64"	0.0781"	2"	0.88"	Round	5/64"	Split	88055A42	00000




						Uncoated

						5/64"	0.0781"	2"	0.84"	Round	5/64"	Split	2876A141	0000

Tap and Drill Bit Cases

For Drill Bits

Steel

Store and organize drill bits so they stay in good working condition and don't go missing. These cases have individually marked holes for each size in your set.

Steel—Steel cases have stands that fold in and out. Stand them up when you need them, then fold them back into the slim case for storage inside a workbench drawer.

		For Drill Bit		Overall
	Material	No. of	Size	Lg.	Wd.	Ht.		Each
For Inch, Wire Gauge, Letter Size Drill Bits







				For Jobbers' Length

				Steel	19	1/16", 1/2", 1/4", 1/8", 21 Ga., 25 Ga., 37/64", 29 Ga., 3/16", 3/32", 3/8", 5/16", 5/32", 5/64", 7 Ga., 7/16", 7/32", F, U	7"	4"	1 1/4"	2961A43	000000

Drill Bit Guides

Place these guides on your workpiece to drill precise holes without building a fixture. They'll even work on corners and round surfaces. Lines marked on the side allow you to align your holes accurately. Made of hardened steel, they’re tough enough to withstand frequent use.

For Drill Bit Size	For Drill Bit Size Decimal Equiv.	Lg.	Wd.	Ht.	Material		Each
3/64", 1/16", 5/64", 3/32", 7/64", 1/8", 10 Ga., 21 Ga., 25 Ga., 29 Ga., 30 Ga., 33 Ga., 36 Ga., 37 Ga., 38 Ga., 40 Ga., 43 Ga., 45 Ga., 47 Ga., 50 Ga., 53 Ga.	0.0469", 0.0595", 0.0625", 0.07", 0.0781", 0.0785", 0.082", 0.089", 0.0938", 0.098", 0.1015", 0.104", 0.1065", 0.1094", 0.113", 0.125", 0.128", 0.136", 0.1495", 0.159", 0.1935"	3 5/8"	5/8"	1/2"	Steel	9550T17	000000

Center Drills

Create precisely centered holes that mate with lathe centers or drill and countersink in a single step to install fasteners.

High-Speed Steel

These versatile, wear-resistant center drills cut cleanly in most materials, including plastic, aluminum, and steel.

60° Countersink Angle—The most common center drill angle. The short and sturdy tip starts holes that perfectly match lathe centers.

82° Countersink Angle—Start a hole with cone-shaped recesses so inch screws sit flush with the surface.

90° Countersink Angle—Start a hole with cone-shaped recesses so metric screws sit flush with the surface.

Uncoated—Suitable for most tasks, but won't last as long as coated center drills.

Titanium Nitride (TiN) Coated—Resist heat, chipping, and wear better than uncoated center drills, so they stay sharp over longer periods.

			Dia.						Uncoated		Titanium Nitride (TiN) Coated
	Trade Size	Drill Bit Size	Body	Shank	Overall Lg.	No. of Flutes	No. of Countersinking Ends	Mfr.		Each		Each
60° Countersink Angle



		2	5/64"	3/16"	3/16"	1 7/8"	2	2	Keo	2915A12	00000	29775A17	000000


		2	5/64"	3/16"	3/16"	3"	2	2	Keo	2915A331	00000	———	0
		2	5/64"	3/16"	3/16"	4"	2	2	Keo	2915A34	00000	———	0
		2	5/64"	3/16"	3/16"	5"	2	2	Keo	2915A35	00000	———	0
		2	5/64"	3/16"	3/16"	6"	2	2	Keo	2915A36	00000	———	0


		82° Countersink Angle



				2	5/64"	3/16"	3/16"	1 7/8"	2	2	Keo	2915A192	00000	———	0


				2	5/64"	3/16"	3/16"	3"	2	2	Keo	2756A15	00000	———	0
				2	5/64"	3/16"	3/16"	4"	2	2	Keo	2756A16	00000	———	0
				2	5/64"	3/16"	3/16"	5"	2	2	Keo	2756A17	00000	———	0
				2	5/64"	3/16"	3/16"	6"	2	2	Keo	2756A18	00000	———	0


				90° Countersink Angle



						2	5/64"	3/16"	3/16"	1 7/8"	2	2	Keo	2915A22	00000	———	0


						2	5/64"	3/16"	3/16"	3"	2	2	Keo	2756A45	00000	———	0
						2	5/64"	3/16"	3/16"	4"	2	2	Keo	2756A46	00000	———	0
						2	5/64"	3/16"	3/16"	5"	2	2	Keo	2756A47	00000	———	0
						2	5/64"	3/16"	3/16"	6"	2	2	Keo	2756A48	00000	———	0

Cobalt Steel

Tough and wear resistant, these center drills last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without chipping on hard materials, such as nickel.

60° Countersink Angle—The most common center drill angle. The short and sturdy tip starts holes that perfectly match lathe centers.

Uncoated—Suitable for most tasks, but won't last as long as coated center drills.

			Dia.						Uncoated
	Trade Size	Drill Bit Size	Body	Shank	Overall Lg.	No. of Flutes	No. of Countersinking Ends	Mfr.		Each
60° Countersink Angle



		2	5/64"	3/16"	3/16"	1 7/8"	2	2	Dormer Pramet	2915A52	00000


		2	5/64"	3/16"	3/16"	3"	2	2	Keo	2728A15	00000
		2	5/64"	3/16"	3/16"	4"	2	2	Keo	2728A16	00000
		2	5/64"	3/16"	3/16"	5"	2	2	Keo	2728A17	00000
		2	5/64"	3/16"	3/16"	6"	2	2	Keo	2728A18	00000

Carbide

The hardest and most wear-resistant center drills you can buy. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so use a rigid machine tool holder to prevent breakage.

60° Countersink Angle—The most common center drill angle. The short and sturdy tip starts holes that perfectly match lathe centers.

82° Countersink Angle—Start a hole with cone-shaped recesses so inch screws sit flush with the surface.

90° Countersink Angle—Start a hole with cone-shaped recesses so metric screws sit flush with the surface.

Uncoated—Suitable for most tasks, but won't last as long as coated center drills.

Titanium Carbon Nitride (TiCN) Coated—Resist heat, chipping, and wear, to last up to three times longer than an uncoated option.

Titanium Aluminum Nitride (TiAlN) Coated—Harder than TiCN, these center drills cut metal as hard as Rockwell C50, such as iron and titanium, without chipping.

Aluminum Titanium Nitride (AlTiN) Coated—The hardest and most wear-resistant coating we offer, these center drills cut through metals as hard as Rockwell C70 without losing their sharp cutting edges.

			Dia.						Uncoated		Titanium Carbon Nitride (TiCN) Coated		Titanium Aluminum Nitride (TiAlN) Coated		Aluminum Titanium Nitride (AlTiN) Coated
	Trade Size	Drill Bit Size	Body	Shank	Overall Lg.	No. of Flutes	No. of Countersinking Ends	Mfr.		Each		Each		Each		Each
60° Countersink Angle



		2	5/64"	3/16"	3/16"	2"	2	2	Ultra Tool	2925A12	000000	2936A141	000000	2936A144	000000	2936A231	000000


		82° Countersink Angle



				2	5/64"	3/16"	3/16"	2"	2	2	Ultra Tool	2925A26	00000	2936A142	00000	2936A145	00000	2936A232	00000


				90° Countersink Angle



						2	5/64"	3/16"	3/16"	2"	2	2	Ultra Tool	2925A37	00000	2936A143	00000	2936A146	00000	2936A233	00000

Carbide Drill Bits for Hardened Steel


Short Length Round Shank	Split

The hardest and most wear-resistant bits with the longest life. Straight flutes withstand the heavy pressure needed to penetrate hardened steel. These bits cut more aggressively and resist stress better than spiral-flute bits. Carbide stays sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. It can be brittle, however, so these bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.

Short Length—The most rigid bits for drilling the straightest holes.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.

Uncoated—Excellent for a range of materials but won't last as long as coated bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Short Length







				Titanium Nitride (TiN) Coated

				5/64"	0.0781"	2"	0.4"	Round	5/64"	Split	8882A12	000000




						Uncoated

						5/64"	0.0781"	2"	0.4"	Round	5/64"	Four Facet	8944A12	00000

Drill Bit Size Gauges

For Inch

Measure drill bit sizes with these gauges.

For System of Measurement	For Use With	For Drill Bit Size	Wd.	Ht.	Thk.	Material	Color	Mounting Hole Dia.		Each
Inch	Drills	1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2"	2 1/2"	6 1/2"	5/64"	Steel	Silver	1/8"	8986A67	000000

Short-Flute High-Speed Steel Drill Bits

Extended Length

Round Shank

Split

The rigidity of short-length bits without sacrificing reach. The shallow drilling depth makes these less likely to wobble than other bits of the same length, so they stay centered and drill straighter. High-speed steel is good for general purpose drilling in most metals.

Extended Length—Drill through panels and thick workpieces with our longest bits.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Extended Length







				Black Oxide

				5/64"	0.0781"	6"	0.9"	Round	5/64"	Split	2986A13	00000


				5/64"	0.0781"	12"	0.9"	Round	5/64"	Split	2986A47	00000

Quick-Change Hex High-Speed Steel Drill Bits

Short Length

Split

Save time when you need to change bits frequently. The grooved shank snaps directly into power screwdrivers, impact drivers, and other tools that accept a _1/4"hex shank. High-speed steel bits are good for general purpose drilling in most metals.

Short Length—The most rigid bits for drilling the straightest holes.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Short Length







				Black Oxide

				5/64"	0.0781"	2"	0.5"	Quick-Change Hex	1/4"	Split	29305A721	00000

High-Speed Steel Drill Bits for Wood Screws

Achieve a perfect fit for wood screws with bits that match their exact thread size and diameter. Wear and heat resistant, they're good for soft and hard woods.

	Overall Lg.	Max. Drilling Dp.	Shank Size	Drill Bit Point Type		Each
Uncoated







	Round Shank

	5/64"	0.0781"	No. 2	2"	1"	5/64"	Standard	3080A35	00000


	5/64"	0.0781"	No. 2	3 3/4"	2 1/4"	5/64"	Standard	30915A71	00000

Short-Flute Cobalt Steel Drill Bits


Jobbers' Length Round Shank	Extended Length Round Shank	Split

These bits combine the toughness and wear resistance of cobalt with short flutes for rigidity. The shallow drilling depth makes them less likely to wobble than other bits of the same length, so they stay centered and drill straighter. Cobalt lasts at least twice as long as high-speed steel. It can also run up to 25% faster at higher temperatures without damaging the bit on hard materials such as nickel.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Extended Length—Drill through panels and thick workpieces with our longest bits.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

Uncoated—Polished to eject chips, these are also known as bright finish bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Black Oxide

				5/64"	0.0781"	2"	0.57"	Round	5/64"	Split	3146A113	00000


				Extended Length







								Uncoated

								5/64"	0.0781"	6"	0.84"	Round	5/64"	Split	8934A12	0000


								5/64"	0.0781"	12"	0.84"	Round	5/64"	Split	8934A32	00000

Expanded-Shank Carbide Drill Bits


Jobbers' Length	Standard

The shank fits the same-size chuck as standard drill bits, so you can spend less time setting up. Because these bits make very small holes, they’re often used for drilling circuit boards. Carbide bits are the the hardest and most wear resistant. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. Carbide can be brittle, however, so bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.

Uncoated—Excellent for a range of materials but won't last as long as coated bits.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Titanium Nitride (TiN) Coated

				5/64"	0.0781"	1 1/2"	0.36"	Expanded Round	1/8"	Four Facet	6415N114	000000




						Titanium Aluminum Nitride (TiAlN) Coated

						5/64"	0.0781"	1 1/2"	0.36"	Expanded Round	1/8"	Standard	2598N214	00000




								Uncoated

								5/64"	0.0781"	1 1/2"	0.36"	Expanded Round	1/8"	Standard	2841A95	0000

Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

Jobbers' Length

Cut clean holes in abrasive material without fraying or delaminating the surface. Made of carbide, these bits resist wear to retain a sharp edge, even after after hundreds of cuts.

					Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Angle	Drill Bit Point Type	Bit Style		Each
Jobbers' Length







				Diamond Coated

				5/64"	0.0781"	1 3/4"	0.7"	Round	5/64"	118°	Split	Fluted	3162A12	000000




						Uncoated

						5/64"	0.0781"	1 3/4"	0.7"	Round	5/64"	140°	Brad	Fluted	2828A11	00000

Drill Bits with Countersunk-Hole Guide

Quick-Change Hex Shank

Center holes perfectly before installing hinges, latches, and other hardware that require a countersunk screw. These bits have a built-in guide with a beveled tip that keeps the bit in position as it enters the material. So instead of measuring and marking, use your hardware as a template to drill the pilot holes. Once screws are installed, they're straight and the heads are flush. Also known as Vix bits, they're made of wear- and heat-resistant high-speed steel.

	Drill Bits									Replacement Bits
	Drill Bit Size	Decimal Size Equiv.	For Screw Size	Overall Lg.	Max. Drilling Dp.	Shank Size	Drill Bit Point Type		Each	Shank Size		Each
Uncoated







				Quick-Change Hex Shank

				5/64"	0.0781"	No. 2, No. 3, No. 4	3 7/8"	0.62"	1/4"	Standard	2869A31	000000	1/4"	2869A81	00000

Chip-Clearing Cobalt Steel Drill Bits

Jobbers' Length

Parabolic Flute

Round Shank

Split

Avoid clogs and dissipate heat with cobalt bits that last at least twice as long as high-speed steel. The flutes clear chips to improve coolant flow and prevent damage to the bit and the hole. They also speed up drilling since you don't have to stop to clear the bit manually.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Uncoated—Polished to eject chips, these are also known as bright finish bits.

						Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Flute Type	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Titanium Nitride (TiN) Coated

				5/64"	0.0781"	2"	0.84"	Parabolic	Round	5/64"	Split	3183A42	00000




						Uncoated

						5/64"	0.0781"	2"	0.84"	Parabolic	Round	5/64"	Split	29925A912	0000

Chip-Clearing High-Speed Steel Drill Bits


Jobbers' Length High Helix Flute Round Shank	Jobbers' Length Parabolic Flute Round Shank

Standard

Split

With flutes that lift chips out of the hole, you don't have to stop drilling to clear these bits manually. They improve coolant flow to dissipate heat and prevent clogs that can damage the bit and ruin the hole. High-speed steel is good for general purpose drilling in most metals.

High Helix Flute—Less aggressive than parabolic flutes for cleaner cuts in soft metals.

Parabolic Flute—A U-shaped groove on the flutes cuts faster and clears chips more quickly than high-helix bits, so these are better for drilling deeper holes.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

						Shank
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Flute Type	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Black Oxide

				5/64"	0.0781"	2"	0.78"	High Helix	Round	5/64"	Split	31115A42	00000


				5/64"	0.0781"	2"	0.84"	Parabolic	Round	5/64"	Split	29925A12	0000




						Titanium Nitride (TiN) Coated

						5/64"	0.0781"	2"	0.84"	Parabolic	Round	5/64"	Split	29925A52	0000




								Uncoated

								5/64"	0.0781"	2"	0.84"	Parabolic	Round	5/64"	Split	2754A42	0000


								5/64"	0.0781"	2"	0.88"	High Helix	Round	5/64"	Standard	2912A112	0000

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

	288	1-64 Thread × 0.11" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 2-56 Thread × 0.129" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 3-48 Thread × 0.148" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 4-40 Thread × 0.168" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 6-32 Thread × 0.207" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 8-32 Thread × 0.246" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) Drill Bits Installation Tools Through-Hole Taps	Coarse	5/64" 3/32" 36 Ga. 31 Ga. 26 Ga. 17 Ga.	0.078" 0.094" 0.107" 0.120" 0.147" 0.173"	90285A134	0000000

Chip-Clearing High-Speed Steel Drill Bits for Aluminum, Brass, and Bronze

Jobbers' Length

Low Helix Flute

Round Shank

Standard

Designed for soft metals that can gum up other drill bits, wide flutes lift chips out of the hole. This prevents clogs that can weaken and damage the bit and ruin the hole. Also known as slow spiral bits, these are made of versatile high-speed steel.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

						Shank				Each
	Drill Bit Size	Decimal Size Equiv.	Overall Lg.	Max. Drilling Dp.	Flute Type	Type	Size	Drill Bit Point Type		1-11	12-Up
Jobbers' Length







				Uncoated

				5/64"	0.0781"	2"	0.84"	Low Helix	Round	5/64"	Standard	2928A212	00000	00000

Quick-Change Hex Drill-Bit Countersinks for Wood and Plastic

Switch bits instead of tools to simplify jobs. These snap directly into drills, power screwdrivers, and other tools that accept a 1/4" hex shank. You can slide the countersink up and down the drill bit and then secure it with a set screw, so one tool will drill countersunk holes for screws of different lengths. These countersinks cut a smooth and even finish in wood and plastic on the first pass.

High-Speed Steel

2 Flutes

The choice if you're countersinking lots of holes, these wear-resistant countersinks cut faster and last longer than carbon steel.

Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.

	Countersinks									Replacement Drill Bits
							Uncoated
	Body Dia.	Max. Hole Drilling Dp.	For Screw Size	Overall Lg.	Shank Size	Shank Type	Mfr.		Each		Each
2 Flutes







				82° Countersink Angle

				1/2"	1"	No. 4	2 9/16"	1/4"	Quick-Change Hex	Make It Snappy Tools	2747A21	00000	8870A15	00000

Depth-Limiting Drill Stops

Image of ProductInUse. Front orientation. Drill Stops.

Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.

	For Drill Bit Size Decimal Equiv.	Overall Lg.	OD	Hex Key Size for Set Screw	Material		Each
For Inch Drill Bits



	5/64"	0.0781"	1/2"	3/8"	3/32"	Steel	8865A107	00000

Extensions for Round-Shank Drill Bits

Two-Piece Extensions

Attach to the shank of a drill bit to extend its reach.

Two-Piece Extensions—To attach two-piece extensions, insert a drill bit into the collet, then thread the collet onto the extension and tighten with a wrench.

	For Drill Bit
	Size	Size Decimal Equiv.	Shank Size	Shank Size	Overall Lg.	OD	Material		Each
For Inch Drill Bits







				Two-Piece Extensions

				5/64"	0.0781"	5/64"	1/4"	4 1/2"	5/16"	Steel	3016A812	000000


				5/64"	0.0781"	5/64"	1/4"	9 1/2"	5/16"	Steel	3016A838	00000

Radius-Style Center Drills

Drill a hole that smoothly rounds into its countersunk portion to set up the most precise machining jobs. The curved shape of the hole minimizes contact between your material and lathe center. With fewer touch points, there's fewer opportunities to knock the lathe center off track.

High-Speed Steel

These versatile, wear-resistant center drills cut cleanly in most materials, including plastic, aluminum, and steel.

60° Countersink Angle—The most common center drill angle. The short and sturdy tip starts holes that perfectly match lathe centers.

Uncoated—Suitable for most tasks, but won't last as long as coated center drills.

			Dia.						Uncoated
	Trade Size	Drill Bit Size	Body	Shank	Overall Lg.	No. of Flutes	No. of Countersinking Ends	Mfr.		Each
60° Countersink Angle



		2	5/64"	3/16"	3/16"	1 7/8"	2	2	Keo	27435A22	00000

M2 High-Speed Tool Steel Rod Sets

Supplied in a metal index case with fold-out panels, these rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They are hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.

Includes	No. of Pieces	Dia. Tolerance	Mechanical Finish		Each
Sizes 1/16"-1/2" (×1/64ths increments) and a metal index case	29	-0.0002" to 0"	Precision Ground	2952A5	0000000

Tight-Tolerance Water-Hardening W1 Tool Steel Rods

Ready for turning in your lathe, these rods are precision ground and held to strict diameter and straightness tolerances. Also known as drill rod. With far less alloy content than other tool steel, W1 is the most machinable we offer. These rods are often used to make hammers, files, and reamers—tools that don't require the dimensional stability of A2 or O1. These rods are also decarb-free, which means any surface flaws created during the manufacturing process have been removed. This makes them even more machinable and leads to better results from heat treating or finishing. Heat treat the surface for extra wear resistance. Or, quench this steel in water to boost its hardness and strength, giving it a sharper, more durable edge for small tools.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Drill Bit Size	Fabrication	Heat Treatment	Yield Strength, psi	Mechanical Finish	Hardness	Max. Hardness After Heat Treatment	Specs. Met		3 ft. Long	6 ft. Long
0.0781"	0.000" to 0.0003"	5/64"	Hot Rolled	Annealed	50,000	Precision Ground	Rockwell B95 (Medium)	Rockwell C65	ASTM A686	8890K122	00000	00000

Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods

These rods, also known as drill blanks, have an undersized diameter for machining your own drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Drill Bit Size	Lg.	Yield Strength	Hardness	Mechanical Finish		Each
0.0781"	-0.0002" to 0"	5/64"	2"	Not Rated	Rockwell C60 (Extra Hard)	Precision Ground	3009A115	00000