Hand Impact Bits | McMaster-Carr

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30 Products

Phillips Bits For Impact Drivers

Hex Shank

Tougher than your average Phillips bits. These have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Hex Shank—Use a bit adapter (not included) to attach these bits to power tools.

No. 2 Reduced Drive Size— Often used with drywall screws, these bits fit deeper into the screw head than standard bits for better control and precision.

Zinc-Plated Steel—Withstand occasional exposure to moisture.

Wear-Resistant Diamond-Coated Steel—Diamond particles embedded in the tip bite into the screw head for a strong grip. Our most wear-resistant bits, these maintain their grip and shape, even when driving screws into tough materials.

	Material		Each
For Hand Tools







	1/4" Hex Shank Size

	No. 1	No. 2, No. 3, No. 4	1"	Diamond-Coated Steel	0000000	00000


	No. 2	No. 5, No. 6, No. 7, No. 8, No. 9, No. 10	1"	Diamond-Coated Steel	0000000	0000
	No. 2 Reduced	No. 5, No. 6, No. 7, No. 8, No. 9, No. 10	1"	Zinc-Plated Steel	00000000	0000
	No. 3	No. 12, 1/4"	1"	Diamond-Coated Steel	0000000	0000

Bit Sets For Impact Drivers

Tougher than your average bits, the ones in these sets have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Hex Shank—Use a bit adapter (not included) to attach these bits to power tools.

	Adapters Included	Material	Container Type		Each
For Hand Tools







	1/4" Hex Shank Size

	10	1 Adapter 9 Bits	Phillips: No. 2 (1" O'all Lg.)—3 ea. Phillips: No. 3 (1" O'all Lg.)—1 ea. Torx: T25 (1" O'all Lg.)—3 ea. Torx: T30, T40 (1" O'all Lg.)—1 ea.	1/4" Female Hex × 1/4" Male Hex for Power Tools	Diamond-Coated Steel	Plastic Case	0000000	000000


	30	1 Adapter 29 Bits	Hex: 3 mm, 4 mm, 5 mm, 6 mm (1" O'all Lg.)—1 ea. Phillips: No. 1 (1" O'all Lg.)—2 ea. Phillips: No. 2 (1" O'all Lg.)—3 ea. Phillips: No. 3 (1" O'all Lg.)—2 ea. Pozidriv®: No. 1, No. 3 (1" O'all Lg.)—2 ea. Pozidriv®: No. 2 (1" O'all Lg.)—3 ea. Torx: T10, T15 (1" O'all Lg.)—1 ea. Torx: T20, T30, T40 (1" O'all Lg.)—2 ea. Torx: T25 (1" O'all Lg.)—3 ea.	1/4" Female Hex × 1/4" Male Hex for Power Tools	Diamond-Coated Steel	Plastic Case	0000000	000000

Hex Bits For Impact Drivers

Hex Shank

Tougher than your average hex bits. These have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Hex Shank—Use a bit adapter (not included) to attach these bits to power tools.

Steel—Best for dry environments, since moisture will cause these bits to rust.

		Each
For Hand Tools







	1/4" Hex Shank Size

	1/8"	1"	Steel	0000000	00000


	9/64"	1"	Steel	0000000	0000
	5/32"	1"	Steel	0000000	0000
	3/16"	1"	Steel	0000000	0000
	7/32"	1"	Steel	0000000	0000
	1/4"	1"	Steel	0000000	0000
	4 mm	1"	Diamond-Coated Steel	0000000	0000
	5 mm	1"	Diamond-Coated Steel	0000000	0000
	6 mm	1"	Diamond-Coated Steel	0000000	0000

Bit Adapters for Impact Wrenches

Designed to withstand high torque and force, these adapters fit the square drive on impact wrenches. They accept hex-shank bits (also known as insert bits).

	For Bit Shank Type	For Bit Hex Shank Size	Overall Lg.	Material		Each
Retaining-Ring Bit Holder



	1/4"	Hex	1/4"	1"	Steel	0000000	00000


	3/8"	Hex	1/4"	1 3/16"	Steel	0000000	00000
	1/2"	Hex	1/4"	1 3/8"	Steel	0000000	00000

Pozidriv® Bits For Impact Drivers

Hex Shank

Tougher than your average Pozidriv® bits. These have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Hex Shank—Use a bit adapter (not included) to attach these bits to power tools.

	Material		Each
For Hand Tools







	1/4" Hex Shank Size

	No. 1	No. 2, No. 3, No. 4	1"	Diamond-Coated Steel	0000000	00000


	No. 2	No. 5, No. 6, No. 7, No. 8, No. 9, No. 10	1"	Diamond-Coated Steel	0000000	0000
	No. 3	No. 12, 1/4"	1"	Diamond-Coated Steel	0000000	0000

Square Bits For Impact Drivers

Hex Shank

Tougher than your average square bits. These have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Hex Shank—Use a bit adapter (not included) to attach these bits to power tools.

	Material		Each
For Hand Tools







	1/4" Hex Shank Size

	No. 2	No. 8, No. 10	1"	Diamond-Coated Steel	0000000	00000


	No. 3	No. 12, No. 14, 1/4"	1"	Diamond-Coated Steel	0000000	0000

Torx Bits For Impact Drivers

Hex Shank

Tougher than your average Torx bits. These have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Hex Shank—Use a bit adapter (not included) to attach these bits to power tools.

Steel—Best for dry environments, since moisture will cause these bits to rust.

		Each
For Hand Tools







	1/4" Hex Shank Size

	T10	1"	Diamond-Coated Steel	0000000	00000


	T15	1"	Diamond-Coated Steel	0000000	0000
	T20	1"	Diamond-Coated Steel	0000000	0000
	T25	1"	Diamond-Coated Steel	0000000	0000
	T27	1"	Steel	0000000	0000
	T30	1"	Diamond-Coated Steel	0000000	0000
	T40	1"	Diamond-Coated Steel	0000000	0000