1/2" Square Drive Wrenches | McMaster-Carr

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Square Drive Size

Drive Size

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External 8-Point

External 12-Point

External Pentagon

External Square

External Torx Plus

Tamper-Resistant Torx

Overall Length

15/16" to 1 1/8"

31/32" to 3 1/16"

1 1/2" to 2 1/4"

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Socket Style

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Air Hammer Adapter

Finger-Tightening Adapter

Hex Head Adapter

Hex Shank-to-Square Drive Adapter

Quick-Change Adapter

Ratchet Adapter

Secure-Hold Extension

Secure-Hold Socket Adapter

Square Drive Size Adapter

Torque-and-Angle Measuring Adapter

Torque-Limiting Adapter

Drive Type

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Finish

Magnesium Phosphate Coated

Phosphate Coated

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Aluminum Bronze

Stainless Steel

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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Number of Pieces

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Nut Clearance Depth

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12-Point Sure Grip

Bolt Clearance Depth

How can we improve?

1,233 Products

Fastening and Joining

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Wrench Handles

Generate extra torque to loosen stubborn fasteners; also known as breaker bars

Socket Adapters

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Spanner Wrenches

Spanner Wrenches

Grab onto holes and slots to turn collars, bearings, and other machine tool components

Strap Wrenches

Grip plastic and high-polished pipe, tubing, hand wheels, and filters without marring the surface

Chain Wrenches

Grasp and twist pipe, tubing, and conduit, as well as irregularly shaped objects

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Impact Wrenches

Impact Wrenches

Maximize torque to break frozen bolts free and drive fasteners more quickly than other wrenches

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

Remove broken screws, pipes, and studs without damaging the threads around them

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

Speeder Handles

Speeder Handles

Crank the handle to fasten nuts and bolts quickly

Impact Drivers

More powerful than drills to drive screws through dense material and loosen stuck fasteners

Containers, Storage, and Furniture

Socket Organizers

Socket Organizers

Arrange sockets at your workstation or carry them neatly around your facility

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)