1/2" Square Drive Size Extensions

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	Socket Type Socket Type

	Extension
	Hex Shank to Square Drive Adapter
	Square Drive Size Adapter
	Secure-Hold Extension
	Flex Adapter
	Torque-Limiting Adapter
	Secure-Hold Socket Adapter
	Torque-and- Angle Measuring Adapter
	Ratchet Adapter

	System of Measurement System of Measurement

Inch

ft.-lbs.

in.-lbs.

	Square Drive Size Square Drive Size	Show

1/2"

	Square Drive Size Square Drive Size	Hide

	Length Length

	Finish Finish

	Material Material

Aluminum-Bronze

Steel

	Drive Type Drive Type

Manual

Impact

Nonimpact Power

	Individual/Set Individual/Set

Individual

Set

	Square Drive Gender Square Drive Gender

Female

Male

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

DFARS Specialty Metals
COTS-Exempt

	Number of Pieces Number of Pieces

	Torque Adjustability Torque Adjustability

Factory Set

Adjustable

	Color Color

	White		Yellow
	Gray		Blue
	Blue- Green

	Container Type Container Type

Plastic Roll-Up Pouch

Plastic Case

Metal Clip Rail

	Torque Setting Torque Setting

	Hex Shank Size Hex Shank Size

1/4"

7/16"

5/8"

	Shank Type Shank Type

	Quick-Change Hex

	Socket Retainer Style Socket Retainer Style

Ball Detent

	OD OD

	Counterclockwise Accuracy Counterclockwise Accuracy

±10%

±5%

±2%

	Clockwise Accuracy Clockwise Accuracy

±10%

±5%

±2%

	Maximum Torque Maximum Torque

	Torque-Limiting Direction Torque-Limiting Direction

Clockwise and
Counterclockwise

Clockwise

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78 Products

About Torque Tools

Attach to your socket for a longer reach.

Chrome Plated
Overall Lg.	Material		Each
1/2" Square Drive
2 1/2"	Steel	0000000	000000
5"	Steel	0000000	00000
10"	Steel	0000000	00000
20"	Steel	0000000	00000
36"	Steel	0000000	00000
Black
1/2" Square Drive
2 1/2"	Steel	00000000	00000
5"	Steel	00000000	00000
10"	Steel	00000000	00000

Nonsparking Socket Extensions

Made of aluminum-bronze, these extensions satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Warning: Do not use these tools in direct contact with acetylene.

1/2" Square Drive
Overall Lg.	Material		Each
10"	Aluminum-Bronze	0000000	0000000

Electrical-Insulating Socket Extensions

Insulated to protect against accidental contact with live electrical circuits, these extensions are tested to 1,000 volts to meet IEC 60900.

1/2" Square Drive
Overall Lg.	Material	Specifications Met		Each
5 1/2"	Plastic-Coated Steel	IEC 60900	0000000	000000
10 1/4"	Plastic-Coated Steel	IEC 60900	0000000	00000

Wobble Socket Extensions

The square drive has a rounded shape that allows the extension to pivot inside the socket opening and turn it from an angle.

1/2" Square Drive
Overall Lg.	Max. Access Angle	Material		Each
2 1/2"	16°	Chrome-Plated Steel	0000000	000000
5"	16°	Chrome-Plated Steel	0000000	00000
10"	16°	Chrome-Plated Steel	0000000	00000
20"	16°	Chrome-Plated Steel	0000000	00000

Secure-Hold Socket Extensions

Lock your socket into the extension to prevent accidental disengagement. Pull the collar to lock or release.

1/2" Square Drive
Overall Lg.	Material		Each
3"	Chrome-Plated Steel	0000000	000000
5"	Chrome-Plated Steel	0000000	00000
10"	Chrome-Plated Steel	0000000	00000

Square Drive Size Adapters

Convert from one square drive size to another.

		Chrome Plated			Black
Square Drive Size (Gender)	Material	Overall Lg.		Each	Overall Lg.		Each
3/8" (Female) × 1/2" (Male)	Steel	1 5/16"	0000000	00000	1 5/16"	00000000	000000
1/2" (Female) × 3/8" (Male)	Steel	1 3/8"	0000000	0000	5"	00000000	00000
1/2" (Female) × 3/4" (Male)	Steel	1 11/16"	0000000	00000	1 15/16"	00000000	0000
3/4" (Female) × 1/2" (Male)	Steel	1 7/8"	0000000	00000	2 5/16"	0000000	00000

Convertible Square Drive Size Adapters

Push the square drive through the adapter to change size.

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

Square Drive Size (Gender)	Overall Lg.	Material		Each
1/2" (Female) × 3/8" (Male) 3/8" (Female) × 1/2" (Male)	3 1/8"	Chrome-Plated Steel	0000000	00000

Electrical-Insulating Square Drive Size Adapters

Insulated to protect against accidental contact with live electrical circuits, these adapters are tested to 1,000 volts to meet IEC 60900.

Square Drive Size (Gender)	Overall Lg	Material	Specifications Met		Each
3/8" (Female) × 1/2" (Male)	1 7/16"	Plastic-Coated Steel	IEC 60900	00000000	000000
1/2" (Female) × 3/8" (Male)	1 3/8"	Plastic-Coated Steel	IEC 60900	00000000	00000

Flex Socket Adapters

Pivot the head to access fasteners from an angle.

1/2" Square Drive
Overall Lg.	Material	Finish		Each
2 5/8"	Steel	Chrome Plated	0000000	000000

Adjustable Torque-Limiting Socket Adapters

Socket Adapter

Pin Kit

To set torque, remove the snap ring and locking plate and adjust the nut. When the torque setting is reached, the adapter clicks and releases. These tools let you accurately measure or limit the torque you apply to prevent overtightening and damaging fasteners.

Use clockwise and counterclockwise adapters to tighten fasteners in both directions. You’ll need to change tools to loosen the fasteners.

Use clockwise adapters to tighten fasteners in the clockwise direction as well as loosen them in the counterclockwise direction. There’s no need to change tools.

Socket Adapters										Replacement Pin Kits
Overall Lg.	OD	Torque Range	Torque-Limiting Direction	Clockwise Accuracy	Counterclockwise Accuracy	Max. Speed, rpm	Material		Each		Each
1/2" Square Drive
2 5/8"	1 3/4"	120 to 480 in.-lbs. 10 to 40 ft.-lbs. 13.6 to 54.2 Nm	Clockwise and Counterclockwise	±5%	±5%	300	Nickel-Plated Steel	0000000	0000000	00000000	000000
2 5/8"	1 3/4"	240 to 600 in.-lbs. 20 to 50 ft.-lbs. 27.1 to 67.8 Nm	Clockwise and Counterclockwise	±5%	±5%	300	Nickel-Plated Steel	0000000	000000	00000000	00000
2 5/8"	2 1/4"	480 to 900 in.-lbs. 40 to 75 ft.-lbs. 54.2 to 101.7 Nm	Clockwise and Counterclockwise	±5%	±5%	300	Nickel-Plated Steel	0000000	000000	00000000	00000
2 11/16"	1 3/4"	120 to 480 in.-lbs. 10 to 40 ft.-lbs. 13.6 to 54.2 Nm	Clockwise	±5%	__	300	Nickel-Plated Steel	00000000	000000	00000000	00000
2 11/16"	1 3/4"	240 to 600 in.-lbs. 20 to 50 ft.-lbs. 27.1 to 67.8 Nm	Clockwise	±5%	__	300	Nickel-Plated Steel	00000000	000000	00000000	00000
2 3/4"	3"	720 to 1,440 in.-lbs. 60 to 120 ft.-lbs. 81.3 to 162.7 Nm	Clockwise and Counterclockwise	±5%	±5%	300	Nickel-Plated Steel	0000000	000000	00000000	00000
2 13/16"	3"	720 to 1,440 in.-lbs. 60 to 120 ft.-lbs. 81.3 to 162.7 Nm	Clockwise	±5%	__	300	Nickel-Plated Steel	00000000	000000	00000000	00000

Factory-Set Torque-Limiting Socket Adapters

Socket Adapter

Pin Kit

When the torque setting is reached, these adapters click and release. They are set to a specific torque and cannot be adjusted. Adapters let you accurately measure or limit the torque you apply to prevent overtightening and damaging fasteners.

Socket Adapters
			Accuracy						Replacement Pin Kits
Torque Setting, in.-lbs.	Overall Lg.	OD	Clockwise	Counterclockwise	Max. Speed, rpm	Material		Each		Each
1/2" Square Drive
300	2 11/16"	1 3/4"	±5%	±5%	300	Nickel-Plated Steel	00000000	0000000	00000000	000000
360	2 11/16"	1 3/4"	±5%	±5%	300	Nickel-Plated Steel	0000000	000000	00000000	00000
1,200	2 13/16"	3"	±5%	±5%	300	Nickel-Plated Steel	00000000	000000	00000000	00000

Torque-and-Angle Measuring Socket Adapters

A digital display shows how torque measurements change as you turn the wrench. Set the desired torque or and angle—lights and an audible alarm indicate when target has been reached or exceeded.

Note: The accuracy ratings do not apply to the lower 10% of the torque range.

				Accuracy
Overall Lg.	OD	Torque Range	Graduations	Clockwise	Counterclockwise	Max. Speed, rpm	Angle	Angle Accuracy	Material	Batteries Included		Each
1/2" Square Drive
3 7/8"	2 1/8"	150 to 3,000 in.-lbs. 12.5 to 250 ft.-lbs. 17 to 340 Nm	1 in.-lbs. 0.1 ft.-lbs. 0.1 Nm	±2%	±2%	300	5°-360°	±1%	Chrome-Plated Steel	Yes	0000000	0000000

Secure-Hold Socket Adapters

Lock the adapter on your tool and the socket to the adapter to prevent accidental disengagement. A set screw keeps the adapter on your tool; pull the collar to lock or release the socket from the adapter.

Square Drive Size (Gender)	Overall Lg.	Material	Finish		Each
1/2" (Female) × 1/2" (Male)	3"	Steel	Black	0000000	000000

Ratcheting Socket Adapters

Change a standard wrench handle into a ratcheting wrench.

1/2" Square Drive
Overall Lg.	Material		Each
2 11/16"	Chrome-Plated Steel	0000000	000000

Impact Socket Extensions

Attach to your socket for a longer reach. These extensions are made to withstand the high torque and force of impact tools.

1/2" Square Drive
Overall Lg.	Material	Finish		Each
2"	Steel	Black	0000000	000000
5"	Steel	Black	0000000	00000
10"	Steel	Black	0000000	00000

Secure-Hold Impact Socket Extensions

Lock your socket into the extension to prevent accidental disengagement. Pull the collar to lock or release. These extensions are made to withstand the high torque and force of impact tools.

1/2" Square Drive
Overall Lg.	Material	Finish		Each
3"	Steel	Black	00000000	000000
5"	Steel	Black	00000000	00000
10"	Steel	Black	00000000	00000

Impact Square Drive Size Adapters

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

3/4", 1", and 1 1/2" square drive size extensions 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
Square Drive Size (Gender)	Overall Lg.	Compatible Retaining Ring ID	Material	Finish		Each		Each
3/8" (Female) × 1/2" (Male)	1 1/4"	__	Steel	Black	0000000	00000	000000	00
1/2" (Female) × 3/8" (Male)	1 1/2"	__	Steel	Black	0000000	00000	000000	00
1/2" (Female) × 5/8" (Male)	1 1/2"	__	Steel	Black	0000000	00000	000000	00
1/2" (Female) × 3/4" (Male)	1 29/32"	__	Steel	Black	00000000	00000	000000	00
5/8" (Female) × 1/2" (Male)	1 7/8"	__	Steel	Black	00000000	00000	000000	00
3/4" (Female) × 1/2" (Male)	2 1/8"	1 1/4"	Steel	Black	00000000	00000	0000000	00000

Impact Magnetic Square Drive Size Adapters

A magnet holds the socket, making changes quicker. These adapters convert from one square-drive size to another. They are made to withstand the high torque and force of impact tools.

Square Drive Size (Gender)	Overall Lg.	Material	Finish		Each
1/2" (Female) × 3/4" (Male)	1 3/16"	Steel	Black	00000000	000000

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.

1/2" Square Drive
Overall Lg.	Material	Finish		Each
2 5/8"	Steel	Black	0000000	000000

Impact Torque-Limiting Socket Adapters

Prevent overtightening that can damage fasteners. These adapters spring back slightly when the set torque is reached. They are made to withstand the high torque and force of impact tools.

				Accuracy
Torque Setting, ft.-lbs.	Overall Lg.	OD	For Max. Wrench Working Torque, ft.-lbs.	Clockwise	Counterclockwise	For Max. Wrench Operating Air Pressure, psi	Material	Color		Each
1/2" Square Drive
65	7 5/8"	1 1/8"	250	±10%	±10%	90	Painted Steel	Yellow	0000000	000000
80	7 5/8"	1 1/8"	250	±10%	±10%	90	Painted Steel	Blue	0000000	00000
100	7 5/8"	1 1/8"	250	±10%	±10%	90	Painted Steel	Gray	0000000	00000
120	7 5/8"	1 1/8"	250	±10%	±10%	90	Painted Steel	White	0000000	00000
140	7 5/8"	1 1/8"	250	±10%	±10%	90	Painted Steel	Blue-Green	0000000	00000

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

Ball Detent Socket Retainer

Pin Socket Retainer

Use sockets with tools that accept hex shanks, such as impact drivers and power drills. Made for durability, these sockets are for use with nonimpact power tools in high-volume production and assembly. They are also made to withstand the high torque and force of impact tools.

1/2" Square Drive
Hex Shank Size	Overall Lg.	Material	Finish	Socket Retainer Style		Each
1/4"	2 3/4"	Steel	__	Ball Detent	00000000	00000
7/16"	2 3/4"	Steel	Black	Pin	00000000	0000
7/16"	5"	Steel	Black	Pin	0000000	00000
5/8"	2 3/4"	Steel	Black	Pin	00000000	00000

Flexible Power Socket Extensions

Bend these extensions around obstructions to access hard-to-reach fasteners. Made for durability, these sockets are for use with nonimpact power tools in high-volume production and assembly. They are not for use with impact tools.

1/2" Square Drive
Overall Lg.	Material	Socket Retainer Style		Each
3 3/4"	Chrome-Plated Steel	Ball Detent	0000000	000000

Socket Extension Sets

Attach to your socket for a longer reach.

1/2" Square Drive
No. of Pieces	Overall Lg.	Material	Container Type		Each
3	2", 5", 10"	Chrome-Plated Steel	Plastic Roll-Up Pouch	0000000	000000

Secure-Hold Socket Extension Sets

Lock your socket into the extension to prevent accidental disengagement. Pull the collar to lock or release.

1/2" Square Drive
No. of Pieces	Overall Lg.	Material		Each
3	3", 5", 10"	Chrome-Plated Steel	0000000	000000

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

No. of Pieces	Includes	Material	Finish		Each
6	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 Square Drive Size Adapter—3/4" Female × 1/2" Male	Steel	Chrome Plated	00000000	000000

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 Socket Extension Sets

Attach to your socket for a longer reach. These extensions are made to withstand the high torque and force of impact tools.

1/2" Square Drive
No. of Pieces	Overall Lg.	Material	Finish		Each
4	2", 3", 5", 10"	Steel	Black	00000000	000000

Secure-Hold Impact Socket Extension Sets

Lock your socket into the extension to prevent accidental disengagement. Pull the collar to lock or release. These extensions are made to withstand the high torque and force of impact tools.

1/2" Square Drive
No. of Pieces	Overall Lg.	Material	Finish		Each
3	3", 5", 10"	Steel	Black	00000000	000000

Impact Torque-Limiting Socket Adapter Sets

Prevent overtightening that can damage fasteners. These adapters spring back slightly when the set torque is reached. They are made to withstand the high torque and force of impact tools.

					Accuracy
No. of Pieces	Includes	O'all Lg.	OD	For Max. Wrench Working Torque, ft.-lbs.	Clockwise	Counterclockwise	For Max. Wrench Operating Air Pressure, psi		Each
1/2" Square Drive—Painted Steel
5	Torque-Limiting Adapter with 65 ft.-lbs.Torque Setting—Yellow Torque-Limiting Adapter with 80 ft.-lbs.Torque Setting—Blue Torque-Limiting Adapter with 100 ft.-lbs.Torque Setting—Gray Torque-Limiting Adapter with 120 ft.-lbs.Torque Setting—White Torque-Limiting Adapter with 140 ft.-lbs.Torque Setting—Blue-Green	7 5/8"	1 1/8"	250	±10%	±10%	90	0000000	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

3/8", 1/2", 3/4", 1" Square Drive
No. of Pieces	Includes	Material	Finish		Each
6	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 3/4" Female × 1" Male Square Drive Size Adapter 1" Female × 3/4" Male Square Drive Size Adapter	Steel	Black	00000000	0000000

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