1 7/8 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
1/2" Square Drive



		1 7/8"	1 3/16"	2 3/32"	—	Black-Oxide Steel	2 13/16"	6-Point	5549A304	000000	———	0


		3/4" Square Drive



				1 7/8"	1 1/4"	1 7/8"	1 5/8"	Black-Oxide Steel	2 13/16"	6-Point	5552A19	00000	5552A38	00000


				1" Square Drive



						1 7/8"	1 1/8"	1 45/64"	2 1/4"	Black-Oxide Steel	2 13/16"	6-Point	5550A204	00000	5550A138	0000


						1 1/2" Square Drive



								1 7/8"	1 3/16"	1 19/32"	2 7/8"	Black-Oxide Steel	3 5/8"	6-Point	7196A19	000000	7196A75	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
1/2" Square Drive



		1 7/8"	2 9/32"	3 1/32"	—	Black-Oxide Steel	3 11/16"	6-Point	5549A113	000000	———	0


		3/4" Square Drive



				1 7/8"	1 3/4"	2.9"	1 5/8"	Black-Oxide Steel	4 1/16"	6-Point	5552A27	00000	5552A38	00000


				1" Square Drive



						1 7/8"	1 1/4"	1 3/4"	2 1/8"	Black-Oxide Steel	4 1/2"	6-Point	5550A127	00000	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



		1 7/8"	2 19/32"	12-Point	External 12-Point, External Hex	2 7/8"	5547A28	000000


		1" Square Drive



				1 7/8"	2 41/64"	12-Point	External 12-Point, External Hex	2 15/16"	5546A19	00000

Ball Joint Sockets


	Rounded 4-Point Socket

The rounded-corner shape fits over ball joints commonly found in suspension and steering systems in vehicles. Sturdier with more give than manual-drive sockets, these are made to withstand the high torque and force of impact tools.

	Overall Lg.	OD	Material	Socket Shape		Each
3/4" Square Drive



	1 7/8"	2 1/16"	2 7/16"	Black-Oxide Steel	Rounded 4-Point	93327A110	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



	22	16 Sockets 1 Adapter 2 Drive Tools 3 Extensions	Standard: 7/8", 15/16", 1", 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 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" Square Drive Adapter	Metal Case	12-Point	7/8", 15/16", 1", 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"	7220A34	000000000


	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	00000000

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



		1 7/8"	1 1/2"	1 1/2"	1 5/8"	Black-Oxide Steel	2 13/16"	12-Point	5552A154	000000	5552A38	00000

6-Point Impact Sockets with Spline Drive

Attach these sockets to your spline-drive impact wrench. These tools are typically used where high torque is required, such as heavy equipment in the aerospace and automotive industries. The hex shape of the fastening end of these sockets achieves the best possible grip on hex fasteners to prevent rounding their points. These sockets are sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools.

Black-Oxide Steel

Spline

Drive

		Clearance Dp.					Standard Clearance
	Drive Size	Nut	Bolt	OD	Socket Shape	For Drive Style	Overall Lg.		Each
No. 5 Spline Drive



		1 7/8"	1 9/16"	2 5/32"	3 1/64"	6-Point	External Hex	3 1/16"	7932N111	000000

Economy 12-Point Socket Sets

Suitable for occasional maintenance work, these sets are imported. 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
3/4" Square Drive



	16	16 Sockets	Standard: 7/8", 15/16", 1", 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" Standard (cont.): 1 7/8", 2"	Metal Clip Rail	12-Point	7/8", 15/16", 1", 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"	7957N111	0000000

Wrench Head Sets


Wrench and Socket Extension Not Included	Wrench Head Set

Reach nuts obstructed by a fluid line or other barrier with the wrench heads in these sets. Connect them to a 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.

	Includes	Material	Wrench Opening Shape		Each
1/2" Square Drive



	15	Wrench Heads: 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"	Chrome-Plated Steel	Round	5831A121	0000000

Sure Grip Wrench Heads


Wrench and Socket Extension Not Included	12-Point Sure-Grip Opening

Grip more of your fastener head with these wrench heads. They have a hex or 12-point opening with more surface area than rounded wrench heads, so they make more contact with fasteners for a better hold. Also known as flare-nut crowfoot wrenches or line wrenches, they're often used with flared tube fittings as well as fuel and hydraulic lines. 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.

12-Point Sure-Grip Opening—Wrenches with a 12-point sure-grip opening quickly position on hex fasteners.

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



	1 7/8"	3 1/4"	1 3/32"	1 11/16"	Chrome-Plated Steel	12-Point Sure Grip	5832A21	000000

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



	1 7/8"	3 5/8"	9/16"	2 3/16"	Chrome-Plated Steel	Round	5831A32	000000