2 1/2" Hex Drivers | McMaster-Carr

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14 Products

12-Point Sockets

Standard

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

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

		Standard
Drive Size	Material	Overall Lg.		Each
Inch
Chrome Plated
1" Square Drive
2 1/2"	Steel	3 7/16"	0000000	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.

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

Inch
Drive Size	Overall Lg.	Thick.	Center-to-Center Lg.	Material		Each
1/2" Square Drive
2 1/2"	4 11/16"	19/32"	2 7/16"	Chrome-Plated Steel	0000000	000000

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.

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.

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

Standard

Sockets
	Clearance Depth								Retaining Rings
Drive Size	Nut	Bolt	Compatible Retaining Ring ID	Material	Finish	Overall Lg.		Each		Each
3/4" Square Drive
2 1/2"	1 15/16"	2 11/32"	2"	Steel	Black Oxide	3 1/4"	00000000	000000	00000000	00000
1" Square Drive
2 1/2"	1 3/8"	2 13/64"	2 1/4"	Steel	Black Oxide	3 5/16"	00000000	000000	00000000	0000

Deep

Sockets
	Clearance Depth								Retaining Rings
Drive Size	Nut	Bolt	Compatible Retaining Ring ID	Material	Finish	Overall Lg.		Each		Each
3/4" Square Drive
2 1/2"	2 7/8"	3 19/64"	2"	Steel	Black Oxide	4 1/4"	0000000	000000	00000000	00000
1" Square Drive
2 1/2"	1 3/8"	3 11/32"	2 1/4"	Steel	Black Oxide	4 7/8"	00000000	000000	00000000	0000

Combination Wrenches


12-Point Box Opening
12-Point Box 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.

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

		Box End		Open End			Dull Chrome Plated		Black Oxide
Drive Size	Overall Lg.	Head Offset Angle	Head Thick.	Opening Angle	Head Thick.	Material		Each		Each
12-Point Box Opening
2 1/2"	29 15/16"	15°	1 9/32"	15°	1 1/32"	Steel	000000	00	0000000	0000000
2 1/2"	31 1/2"	15°	1 5/16"	15°	31/32"	Steel	0000000	0000000	000000	00

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.

12-Point Opening
Drive Size	Overall Lg.	Head Thick.	Head Offset Angle	Material	Finish	Specifications Met		Each
2 1/2"	14"	1 7/16"	45°	Steel	Black Oxide	ASME B107.100	0000000	0000000

Tight-Clearance Open-End Wrenches

Fit the narrow head into tight spaces and around thin fasteners.

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

						Dull Chrome Plated		Black Oxide
Drive Size	Overall Lg.	Opening Angle	Head Thick.	Material	Specifications Met		Each		Each
Rounded Opening
Inch
2 1/2"	9 1/2"	30°	5/16"	Steel	ASME B107.100	0000000	000000	0000000	000000

Striking Open-End Wrenches

Strike the handle with a hammer to break stuck fasteners free. These are also known as slugging wrenches.

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

Rounded Opening
Drive Size	Overall Lg.	Opening Angle	Head Thick.	Material	Specifications Met		Each
Inch
2 1/2"	12 3/4"	15°	31/32"	Steel	DIN 133	00000000	0000000