Flex Adapter Extensions | McMaster-Carr

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	Socket Type Socket Type	Show

	Flex Adapter

	Socket Type Socket Type	Hide


Extension	Hex Shank to Square Drive Adapter

Square Drive Size Adapter	Secure-Hold Extension

Flex Adapter	Torque- Limiting Adapter

Hex Head Adapter	Secure-Hold Socket Adapter

Torque-and- Angle Measuring Adapter	Ratchet Adapter

Quick-Change Adapter

	Square Drive Size Square Drive Size

	Drive Type Drive Type

Manual

Impact

	Finish Finish

Black

Chrome Plated

	Material Material

Steel

	Individual/Set Individual/Set

Individual

Set

	Number of Pieces Number of Pieces

	Length Length

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

DFARS Specialty Metals
COTS-Exempt

	Container Type Container Type

Metal Clip Rail

	Compatible Retaining Ring ID Compatible Retaining Ring ID

1 7/16"

2 1/8"

2 7/8"

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16 Products

Flex Socket Adapters

Pivot the head to access fasteners from an angle.

1/4" Square Drive
Overall Lg.	Material	Finish		Each
1 3/8"	Steel	Chrome Plated	0000000	000000
3/8" Square Drive
2"	Steel	Chrome Plated	0000000	00000
1/2" Square Drive
2 5/8"	Steel	Chrome Plated	0000000	00000
3/4" Square Drive
4 1/16"	Steel	Black	0000000	00000
4 1/16"	Steel	Chrome Plated	0000000	00000

Impact Flex Socket Adapters

Also known as universal joints, these adapters have a pivoting head that lets you access fasteners from an angle. They are made to withstand the high torque and force of impact tools.

3/4", 1", and 1 1/2" square drive size adapters require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.

Adapters						Retaining Rings
Overall Lg.	Compatible Retaining Ring ID	Material	Finish		Each		Each
1/4" Square Drive
1 3/8"	__	Steel	Black	00000000	000000	000000	00
3/8" Square Drive
2 1/16"	__	Steel	Black	0000000	00000	000000	00
1/2" Square Drive
2 5/8"	__	Steel	Black	0000000	00000	000000	00
3/4" Square Drive
3 1/2"	1 7/16"	Steel	Black	0000000	00000	0000000	00000
1" Square Drive
4 5/8"	2 1/8"	Steel	Black	0000000	000000	0000000	0000
1 1/2" Square Drive
8 1/4"	2 7/8"	Steel	Black	00000000	000000	0000000	0000

Square Drive Size Adapter Sets

Convert from one square drive size to another.

Flex adapters pivot to access fasteners from an angle.

For technical drawings and 3-D models, click on a part number.

Square Drive Size Adapters and Flex Adapters

No. of Pieces	Includes	Material	Finish		Each
10	Manual-Drive Chrome-Plated Square Drive Size Adapter—1/4" Female × 3/8" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/8" Female × 1/4" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—3/8" Female × 1/2" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—1/2" Female × 3/8" Male Manual-Drive Chrome-Plated Square Drive Size Adapter—1/2" Female × 3/4" Male Manual-Drive Chrome-Plated Flex Adapter—1/4" Female × 1/4" Male Manual-Drive Chrome-Plated Flex Adapter—3/8" Female × 3/8" Male Impact-Drive Black Flex Adapter—1/4" Female × 1/4" Male Impact-Drive Black Flex Adapter—3/8" Female × 3/8" Male Impact-Drive Black Flex Adapter—1/2" Female × 1/2" Male	Steel	Black, Chrome Plated	00000000	0000000

Impact Square Drive Size Adapter Sets

Convert from one square drive size to another. These adapters are made to withstand the high torque and force of impact tools.

Flex adapters pivot to access fasteners from an angle.

For technical drawings and 3-D models, click on a part number.

Square Drive Size Adapters and Flex Adapters

1/4", 3/8", 1/2", 3/4" Square Drive
No. of Pieces	Includes	Material	Finish		Each
7	3/8" Female × 1/2" Male Square Drive Size Adapter 1/2" Female × 3/8" Male Square Drive Size Adapter 1/2" Female × 3/4" Male Square Drive Size Adapter 3/4" Female × 1/2" Male Square Drive Size Adapter 1/4" Female × 1/4" Male Flex Adapter 3/8" Female × 3/8" Male Flex Adapter 1/2" Female × 1/2" Male Flex Adapter	Steel	Black	00000000	0000000