2 3/8 Inch Sockets | McMaster-Carr

3/4" Square Drive, 1" Square Drive, and 1 1/2" Square Drive—_3/4", 1", and 1 _1/2" square drive size sockets 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.

	Sockets									Retaining Rings
		Clearance Dp.
	Drive Size	Nut	Bolt	Compatible Retaining Ring ID	Material	Overall Lg.	Socket Shape		Each		Each
3/4" Square Drive



		2 3/8"	1 1/2"	2 7/16"	1 5/8"	Black-Oxide Steel	3 3/8"	6-Point	5552A245	000000	5552A38	00000


		1" Square Drive



				2 3/8"	1 3/8"	2 3/32"	2 1/4"	Black-Oxide Steel	3 1/4"	6-Point	5550A209	000000	5550A138	0000


				1 1/2" Square Drive



						2 3/8"	1 1/2"	2 1/2"	3 3/8"	Black-Oxide Steel	4"	6-Point	7196A29	000000	7196A614	0000

Deep Clearance


		6-Point Socket

3/4" Square Drive and 1" Square Drive—_3/4", 1", and 1 _1/2" square drive size sockets 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.

	Sockets									Retaining Rings
		Clearance Dp.
	Drive Size	Nut	Bolt	Compatible Retaining Ring ID	Material	Overall Lg.	Socket Shape		Each		Each
3/4" Square Drive



		2 3/8"	2 1/2"	3 19/64"	1 3/4"	Black-Oxide Steel	4 1/4"	6-Point	5552A47	000000	5552A181	00000


		1" Square Drive



				2 3/8"	1 3/8"	1 5/8"	2 1/8"	Black-Oxide Steel	5"	6-Point	5550A136	000000	5550A62	0000

12-Point Sockets

The 12-point shape quickly positions on hex fasteners. These sockets are for hand-driven use only.

Chrome-Plated Steel


Standard Clearance	12-Point Socket

					Standard Clearance
	Drive Size	OD	Socket Shape	For Drive Style	Overall Lg.		Each
3/4" Square Drive



		2 3/8"	3 1/32"	12-Point	External 12-Point, External Hex	3 1/16"	5547A43	000000


		1" Square Drive



				2 3/8"	3 1/4"	12-Point	External 12-Point, External Hex	3 5/16"	5546A25	000000

Wheel Bearing Locknut Socket Sets

Shaped and sized for compatibility with wheel bearing locknuts on trucks and trailers, the sockets in these sets make it easy to install and remove locknuts. They ensure the proper torque setting when you reinstall a locknut on your wheel, so you know it's safe and secure. These are square drive sockets for use with hand-driven tools, not impact wrenches. Made of steel, they grip locknuts tightly and prevent rounding.

Sockets—Chrome-Plated Steel

Plastic Case

6-Point

Rounded

6-Point Rounded: 2 3/8", 2 1/2", 2 9/16", 2 3/4"—6-point rounded sockets fit the special rounded hex nuts found on some trucks.

Plastic Case—Carry sets with a plastic case from one location to the next.

6-Point Socket—6-point sockets are designed for use with hex locknuts.

	Components Included	Includes	Container Type	Socket Shape	Drive Size		Each
1/2" Square Drive



	7	7 Sockets	6-Point: 2 3/8", 2 1/2", 55 mm 6-Point Rounded: 2 3/8", 2 1/2", 2 9/16", 2 3/4",	Plastic Case	6-Point	2 3/8", 2 1/2", 2 9/16", 2 3/4", 55 mm	99939A140	0000000

8-Point Sockets

Quickly position these sockets on square and external 8-point fasteners.

Steel

3/4" Square Drive

8-Point

Socket

For

External

Octagonal

Drives

3/4" Square Drive—_3/4" square drive size sockets work with wheel bearing locknuts on trucks and trailers.

					Standard Clearance
	Drive Size	OD	Socket Shape	For Drive Style	Overall Lg.		Each
3/4" Square Drive



		2 3/8"	2 45/64"	8-Point	External Octagon	3 1/2"	99940A110	000000

12-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish. The 12-point shape quickly positions on hex fasteners.

Sockets—Chrome-Plated Steel


	12-Point Socket

	Components Included	Includes	Container Type	Socket Shape	Drive Size		Each
1" Square Drive



	17	17 Sockets	Standard: 1 1/16", 1 1/8", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 5/8", 1 11/16", 1 3/4", 1 13/16", 1 7/8", 2", 2 1/8" Standard (cont.): 2 3/16", 2 1/4", 2 3/8"	Metal Clip Rail	12-Point	1 1/16", 1 1/8", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 5/8", 1 11/16", 1 3/4", 1 13/16", 1 7/8", 2", 2 1/8", 2 3/16", 2 1/4", 2 3/8"	7874N111	000000000

Socket Organizers

		Each
Foam Socket Organizer for 22 Piece 3/4" Square Drive Size Set	5243A22	0000000

Sockets with Drive Tools—Chrome-Plated Steel


	12-Point Socket

	Components Included	Includes	Container Type	Socket Shape	Drive Size		Each
3/4" Square Drive



	29	22 Sockets 1 Adapter 3 Drive Tools 3 Extensions	Standard: 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 9/16", 1 5/8" Standard (cont.): 1 11/16", 1 3/4", 1 13/16", 1 7/8", 2", 2 1/8", 2 3/16", 2 1/4", 2 3/8" 19" Long Sliding-Head Wrench Handle 20 1/8" Long Ratchet Wrench 22 1/8" Long Flex-Head Wrench Handle 3" Long Extension 8" Long Extension 16" Long Extension 4 1/16" Long Flex Adapter	Metal Case	12-Point	7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 9/16", 1 5/8", 1 11/16", 1 3/4", 1 13/16", 1 7/8", 2", 2 1/8", 2 3/16", 2 1/4", 2 3/8"	7219A28	000000000

Socket Organizers

		Each
Foam Socket Organizer for 22 Piece 3/4" Square Drive Size Set	5243A22	0000000

12-Point Impact Sockets

The 12-point shape quickly positions on hex fasteners. These sockets are made to withstand the high torque and force of impact tools.

Standard Clearance


		12-Point Socket

3/4" Square Drive—_3/4" square drive size sockets 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.

	Sockets									Retaining Rings
		Clearance Dp.
	Drive Size	Nut	Bolt	Compatible Retaining Ring ID	Material	Overall Lg.	Socket Shape		Each		Each
3/4" Square Drive



		2 3/8"	1 3/4"	1 3/4"	1 5/8"	Black-Oxide Steel	3 3/8"	12-Point	5552A113	000000	5552A38	00000

Wrench Heads


Wrench and Socket Extension Not Included

Reach nuts obstructed by a fluid line or other barrier with these wrench heads. Connect them to your socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench. Also known as crowfoot wrenches.

	Overall Lg.	Thk.	Ctr.-to-Ctr. Lg.	Material	Wrench Opening Shape		Each
1/2" Square Drive



	2 3/8"	4 11/16"	19/32"	2 1/2"	Chrome-Plated Steel	Round	5831A47	000000