1 3/4" Hex Drivers | McMaster-Carr

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46 Products

Water Meter Wrenches

Also known as alligator wrenches and water-meter nut wrenches, the V-shaped head fits multiple hex fastener sizes.

Drive Size	Overall Lg.	Opening Angle	Head Thk.	Jaw Finish	Material	Color	Grip Material		Each
3/4", 25/32", 13/16", 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"	21"	Straight	11/16"	Zinc Plated	Powder-Coated Steel	Red	Plastic	5040A17	0000000

Impact Hex Bit Sockets


	For Hex Drives

These sockets are made to withstand the high torque and force of impact tools.

Compatible Retaining Ring ID—Sockets that list a compatible retaining ring ID 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.

	Bit Sockets								Retaining Rings
	Drive Size	Overall Lg.	Compatible Retaining Ring ID	Material	Bit Replaceable	For Drive Style		Each		Each
1" Square Drive



		1 3/4"	3 15/16"	1 3/4"	Black Oil-Coated Steel	No	Hex	54615A49	0000000	5550A68	00000


		1 1/2" Square Drive



				1 3/4"	4 3/4"	2 7/8"	Black Oil-Coated Steel	No	Hex	54615A77	000000	7196A75	0000

Nonsparking 6-Point Sockets

6-Point

Socket

Made of aluminum bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present. The hex shape provides the best possible grip on hex fasteners and prevents rounding.

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

Aluminum Bronze

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



		1 3/4"	2 1/2"	6-Point	External Hex	2 9/16"	6490A18	0000000	6490A31	0000000

Tight-Clearance Open-End Wrenches

Round

Opening

Twist thin fasteners in cramped spots where other wrenches are too bulky. With a head and handle about half as thick as standard wrenches, it's easier to grip nuts found in electrical enclosures and small machinery. These wrenches are ASME certified—they handle more torque than run-of-the-mill alternatives and precisely fit fasteners so they don't round them off. Drop forged for added strength, they will be part of your toolbox for life. Also known as check nut or service wrenches.

Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.

Black-Oxide Steel—The dark, matte coating protects these wrenches from wear and won't flake off. They offer minimal corrosion resistance, though, so they're best for dry environments.

Chrome-Plated Steel—The most popular finish, these wrenches won't rust or chip. Although they withstand moisture better than black oxide, they don't hold up to harsh chemicals as well as stainless steel.

Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.

	Head Thk.	Appearance	Specs. Met		Each
Round Opening







	Black-Oxide Steel

	1 3/4"	8 5/8"	30°	5/16"	—	ASME B107.100	5551A49	000000




			Chrome-Plated Steel

			1 3/4"	8 9/16"	30°	5/16"	Dull	ASME B107.100	5414A33	00000

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 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 3/4"	2 25/64"	12-Point	External 12-Point, External Hex	2 11/16"	5547A26	000000


		1" Square Drive



				1 3/4"	2 33/64"	12-Point	External 12-Point, External Hex	2 13/16"	5546A29	00000

6-Point Impact Sockets

Achieve the best possible grip on hex fasteners and prevent rounding. These sockets are made to withstand the high torque and force of impact tools.

Standard 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 3/4"	1 1/16"	1 11/16"	—	Black-Oxide Steel	2 3/8"	6-Point	5549A303	000000	———	0


		3/4" Square Drive



				1 3/4"	1 1/8"	1 11/16"	1 5/8"	Black-Oxide Steel	2 5/8"	6-Point	5552A41	00000	5552A38	00000


				1" Square Drive



						1 3/4"	1 3/32"	1 1/2"	2 1/4"	Black-Oxide Steel	2 11/16"	6-Point	5550A191	00000	5550A138	0000

Deep Clearance


		6-Point Socket

	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 3/4"	2 9/32"	3 1/32"	—	Black-Oxide Steel	3 11/16"	6-Point	5549A112	000000	———	0


		3/4" Square Drive



				1 3/4"	2 1/4"	2 5/8"	1 5/8"	Black-Oxide Steel	3 7/8"	6-Point	5552A24	00000	5552A38	00000


				1" Square Drive



						1 3/4"	1 7/32"	1 11/16"	2 1/8"	Black-Oxide Steel	4 1/4"	6-Point	5550A125	00000	5550A62	0000

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 3/4"	1 21/32"	2 5/32"	2 7/8"	6-Point	External Hex	3 1/16"	7932N109	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

Sockets with Drive Tools—Chrome-Plated Steel


	12-Point Socket

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



	14	10 Sockets 2 Drive Tools 2 Extensions	Standard: 7/8", 15/16", 1", 1 1/8", 1 1/4", 1 7/16", 1 1/2", 1 5/8", 1 3/4", 2" 19" Long Flex-Head Wrench Handle 20" Long Ratchet Wrench 4" Long Extension 8" Long Extension	Plastic Case	12-Point	7/8", 15/16", 1", 1 1/8", 1 1/4", 1 7/16", 1 1/2", 1 5/8", 1 3/4", 2"	7957N104	0000000

Deep-Offset Striking Box Wrenches

The head is offset 45° to provide clearance for reaching over obstructions. Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.

	Overall Lg.	Head Offset Angle	Head Thk.	Material	Specs. Met		Each
12-Point Opening



	1 3/4"	12"	45°	1 1/16"	Black-Oxide Steel	ASME B107.100	5455A42	0000000

Ratcheting Box Wrenches

12-Point Opening

A ratchet mechanism allows you to turn fasteners in tight spaces without removing and repositioning the wrench.

Turn Required to Ratchet—The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.

	Overall Lg.	Head OD	Head Thk.	Turn Req. to Ratchet	Material	Appearance	Grip Material	Mil. Spec.		Each
12-Point Opening



	1 3/4"	19"	3 3/8"	5/8"	20°	Chrome-Plated Steel	Polished	Plastic	Fed. Spec. GGG-W-001405	5183A28	0000000

Ratcheting Combination Wrenches

12-Point

Opening

Turn nuts and bolts without having to remove and reposition these wrenches. They're commonly used where you don't have enough space for full turns. To switch between loosening and tightening, flip them over.

12-Point Opening—The most common opening, these wrenches work on hex and 12-point nuts and bolts. They slide onto hex heads at more angles than 6-point fasteners for quicker engagement, but they're more likely to slip when you apply more torque.

Polished—The smooth surface is easy to wipe clean of grime. The mirror-like finish lends a high-end look to any toolkit.

			Box End		Open End
	Drive Size	Overall Lg.	Head Thick.	Number of Teeth	Opening Angle	Head Thick.	Appearance		Each
12-Point Opening







				Chrome-Plated Steel

				1 3/4"	24 1/2"	61/64"	72	15°	51/64"	Polished	5163A58	0000000

Strikable Open-End Wrenches

Round

Opening

Don't wrestle with stuck fasteners. Strike the handle with a hammer to break them free. Designed to take the hits, these wrenches are drop forged for added strength and will be part of your toolbox for life. Also known as slugging wrenches.

Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.

Steel—Best for dry environments since moisture will cause these wrenches to rust.

	Head Thk.	Specs. Met		Each
Round Opening







	Steel

	1 3/4"	9 1/4"	15°	47/64"	DIN 133	55555A38	0000000

Striking Box Wrenches

12-Point Opening

Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.

12-Point Opening—Wrenches with a 12-point opening are easier to position on hex fasteners than wrenches with a 6-point opening but make less contact.

	Overall Lg.	Head Thk.	Material	Specs. Met		Each
12-Point Opening



	1 3/4"	11 3/8"	63/64"	Black-Oxide Steel	ASME B107.100	5456A18	000000

Sure Grip Wrench Head Sets


Wrench and Socket Extension Not Included

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 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.

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



	8	Wrench Heads: 1 1/8", 1 1/4", 1 5/16", 1 3/8", 1 1/2", 1 5/8", 1 3/4", 2"	Chrome-Plated Steel	12-Point Sure Grip	Plastic Clip Rail	5832A31	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 3/4"	3 1/8"	1 1/32"	1 9/16"	Chrome-Plated Steel	12-Point Sure Grip	5832A19	000000

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

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 3/4"	3 5/8"	17/32"	2 3/16"	Chrome-Plated Steel	Round	5831A21	000000

Combination Wrenches

12-Point

Opening

Your go-to wrenches for routine maintenance. With two different ends, you need fewer tools to tighten and loosen nuts and bolts. The open end slides onto the side of fasteners for adjustments in tight spots. When nuts and bolts won't budge, the box end fully encircles them to apply maximum torque. Drop forged for added strength, these wrenches will be part of your toolbox for life.

Black-Oxide Steel—The dark, matte coating protects these wrenches from wear and won't flake off. They offer minimal corrosion resistance, though, so they're best for dry environments.

Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.

			Box End		Open End
	Drive Size	Overall Lg.	Head Offset Angle	Head Thick.	Opening Angle	Head Thick.	Appearance		Each
12-Point Opening







				Chrome-Plated Steel

				1 3/4"	25"	15°	31/32"	15°	45/64"	Dull	5441A44	0000000




						Black-Oxide Steel

						1 3/4"	22 7/8"	15°	1 1/32"	15°	23/32"	Dull	7242A39	000000

Deep-Offset High-Leverage Box Wrenches

A 45° offset head provides clearance for reaching over obstructions. These wrenches have a long handle for extra leverage—add an extension to increase it even more.

Extension Handles—Extension handles (sold separately) fit securely over the end of the wrench.

	Box Wrenches								Extension Handles
	Drive Size	Overall Lg.	Head Offset Angle	Overall Lg. with Extension Handle	Head Thk.	Material		Each		Each
12-Point Opening



		1 3/4", 44 mm	13 1/2"	45°	43 1/4"	1 1/16"	Black-Oxide Steel	54555A32	0000000	54555A82	0000000

Tight-Clearance Angled Open-End Wrenches

Hex Opening

Stop struggling with thin, awkwardly placed fasteners tucked away in confined spaces. Use the 60°, 75°, or 80° angled head to reach around obstacles and apply more force without constant repositioning. The two heads save you time and reduce the number of tools you need to keep on hand. Also known as ignition wrenches.

Hex Opening—Snugly grip the sides rather then the corners of commonly used hex-head fasteners so they won't slip, even when the nuts and bolts are rusted or damaged.

Black-Oxide Steel—The dark, matte coating protects these wrenches from wear and won't flake off. They offer minimal corrosion resistance, though, so they're best for dry environments.

Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.

	Head Thickness	Appearance	Specs. Met		Each
Hex Opening







	Black-Oxide Steel

	1 3/4"	17"	15° × 60°	1/2"	—	ASME B107.100	54895A93	0000000




			Chrome-Plated Steel

			1 3/4"	17"	15° × 60°	33/64" × 17/32"	Dull	ASME B107.100	5413A53	000000

L-Keys

The highest quality L-keys you can buy for tightening and loosening screws. Our L-keys are precision manufactured to tight tolerances for an exact fit.

Alloy Steel—These L-keys handle high torque without bending or breaking, so they’ll last a lifetime.

Short—A short long leg fits into tight spaces where you have less room to swing, making these ideal for confined areas.

Long—The most common option, these L-keys have a balanced length for everyday reach and torque.

		Length					Each		Package
	Drive Size	Overall	Relative	Long Leg	Short Leg	Finish		Each	Pkg. Qty.		Pkg.
Alloy Steel







				Hex

				1 3/4"	17"	Short	15 1/4"	4"	Black Oxide	7122A97	0000000	5	7122A975	0000000


				1 3/4"	25"	Long	23 1/4"	4 1/2"	Black Oxide	7122A83	000000	2	7122A835	000000