Shank Adapters | McMaster-Carr

	Shank Type Shank Type

	Quick- Change Hex
	Hex
	SDS Max
	Spline
	SDS Plus

	System of Measurement System of Measurement

Inch

in.-lbs.

	Hex Shank Size Hex Shank Size

	Overall Length Overall Length

	Square Drive Size Square Drive Size

1/4"

3/8"

1/2"

	For Drill Bit Shank Type For Drill Bit Shank Type

	Socket Retainer Style Socket Retainer Style

Ball Detent

	Drive Type Drive Type

Impact

Nonimpact Power

Manual

	For Bit Hex Shank Size For Bit Hex Shank Size

	For Bit Shank Type For Bit Shank Type

	Hex
	Hex for Power Tools
	Half Moon
	HIOS

	Material Material

	For Drill Bit Inch Size For Drill Bit Inch Size

	Bit-Holding Mechanism Bit-Holding Mechanism

Magnetic Quick-Change
Chuck

Set Screw

Twist Lock

Magnetic Twist Lock

	For Use With For Use With

Impact Drivers

Drills and Powered
Screwdrivers

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	For Drill Bit Metric Size For Drill Bit Metric Size

	Thread Size Thread Size

5/8"-11

1 1/4"-7

	Gender Gender

Female

Male

	For Drill Bit Wire Gauge Size For Drill Bit Wire Gauge Size

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	For Drill Bit Letter Size For Drill Bit Letter Size

	For Maximum Drill Bit Size Decimal Equivalent For Maximum Drill Bit Size Decimal Equivalent

115 Products

Socket Adapters and Extensions

Hex Shank to Power Socket Square
Drive and Impact Square Drive Adapters

Use sockets with tools that accept hex shanks, such as impact drivers and power drills.

Hex Shank to Square Drive Adapters

Turn sockets with a bit screwdriver.

Angled Hex Shank to Square Drive Adapters

The angled shape lets you use your bit driver like a wrench.

Bit Adapters

Use hex-shank bits (also known as insert bits) in powered tools.

Secure-Hold Bit Adapters

Lock your bit into the adapter to prevent accidental disengagement. These adapters hold hex-shank bits (also known as insert bits) in powered tools.

Tight-Clearance Bit Adapters

The head is angled 90° to drive fasteners in tight spaces. Use these adapters to hold hex-shank bits (also known as insert bits) in powered tools.

Screw-Holding Bit Adapters

A magnetic ring at the end of the adapter holds flat-head screws in place to ensure good contact between the bit and screw. Use these adapters to hold hex-shank bits (also known as insert bits) in powered tools.

Flexible Bit Adapters

Bend these adapters up to 90° to access hard-to-reach fasteners. Use them to hold hex-shank bits (also known as insert bits) in powered tools.

Screw-Guiding Bit Adapters

Keep bits from slipping. Insert a bit into the adapter, place a screw on the end of the bit, and slide the adapter sleeve over the screw. The sleeve retracts as the screw is driven. These adapters hold hex-shank bits (also known as insert bits) in powered tools.

Secure-Hold Bit Adapters for Ratchet Wrenches

Lock your bit into the adapter to prevent accidental disengagement. These adapters attach to square-drive tools.

Bit Adapters for Ratchet Wrenches

Attach these adapters to square-drive tools.

Bit Adapters for Bit Screwdrivers

Use a 4 mm bit in a bit driver that's designed for 1/4" bits.

Bit Adapters for Impact Drivers

These adapters are designed to withstand the high torque of impact drivers. They hold hex-shank bits (also known as insert bits).

Bit Adapters for Rotary Hammers

Insert these adapters into your SDS-drive rotary hammer to use it with hex-shank bits (also known as insert bits).

Torque-Measuring Bit Adapters

Eliminate the need for multiple bulky tools with these bit adapters. At less than 3 inches long, these compact adapters convert ¼” bit screwdriver handles and ¼” bits into torque screwdrivers so you can fasten to a specific torque.

Bit Adapters for Impact Wrenches

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

Fabricating and Machining

Drill Bit Shank Adapters for Power
Screwdrivers and Impact Drivers

For use in power screwdrivers and impact drivers that accept a 1/4" hex shank, each adapter holds a variety of round-shank drill bit sizes for quick tool changes.

Drill Bit Shank Adapters for Rotary Hammers

Adapt your rotary hammer to fit a variety of masonry drill bit shank types.

Thread Adapters for Masonry Drill Bits for Drilling Rigs

Adapt a bit for use on a drilling rig with a different thread size.

Changeable-Size Spline-Shank Masonry
Core Drill Bits for Rotary Hammers

These bits allow you to easily switch to another size by changing only the bit body. They are hollow and cut with their outside edge for drilling holes larger than 1 1/2" in diameter.

Changeable-Size SDS-Max-Shank Masonry
Core Drill Bits for Rotary Hammers

These bits allow you to easily switch to another size by changing only the bit body. They are hollow and cut with their outside edge for drilling holes larger than 1 1/2" in diameter.

Socket Adapters and Extensions

Hex Shank to Power Socket SquareDrive and Impact Square Drive Adapters

Hex Shank to Square Drive Adapters

Angled Hex Shank to Square Drive Adapters

Bit Adapters

Bit Adapters

Secure-Hold Bit Adapters

Tight-Clearance Bit Adapters

Screw-Holding Bit Adapters

Flexible Bit Adapters

Screw-Guiding Bit Adapters

Secure-Hold Bit Adapters for Ratchet Wrenches

Bit Adapters for Ratchet Wrenches

Bit Adapters for Bit Screwdrivers

Bit Adapters for Impact Drivers

Bit Adapters for Rotary Hammers

Torque-Measuring Bit Adapters

Bit Adapters for Impact Wrenches

Fabricating and Machining

Drill Bit Shank Adapters for PowerScrewdrivers and Impact Drivers

Drill Bit Shank Adapters for Rotary Hammers

Thread Adapters for Masonry Drill Bits for Drilling Rigs

Changeable-Size Spline-Shank MasonryCore Drill Bits for Rotary Hammers

Changeable-Size SDS-Max-Shank MasonryCore Drill Bits for Rotary Hammers

Hex Shank to Power Socket Square
Drive and Impact Square Drive Adapters

Drill Bit Shank Adapters for Power
Screwdrivers and Impact Drivers

Changeable-Size Spline-Shank Masonry
Core Drill Bits for Rotary Hammers

Changeable-Size SDS-Max-Shank Masonry
Core Drill Bits for Rotary Hammers