1/2" Square Drive Wrenches | McMaster-Carr

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System of Measurement

Square Drive Size

Drive Size

Bolt Clearance Type

Socket Shape

Drive Style

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"

1 9/16" to 2 1/2"

OD

Socket Type

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

Sold As

Socket Style

Finish

Magnesium Phosphate Coated

Manganese Phosphate Coated

Phosphate Coated

Length

15/16" to 1 1/8"

31/32" to 3 1/16"

1 1/2" to 2 1/4"

1 9/16" to 2 1/2"

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Tip Style

Thread Size

Head Style

Wrench Style

Number of Pieces

Torque

0 ft·lbf to 50 ft·lbf

0 ft·lbf to 100 ft·lbf

0 ft·lbf to 150 ft·lbf

0 ft·lbf to 155 ft·lbf

0 ft·lbf to 175 ft·lbf

0 ft·lbf to 200 ft·lbf

0 ft·lbf to 250 ft·lbf

0 ft·lbf to 260 ft·lbf

0 ft·lbf to 550 ft·lbf

0 ft·lbf to 600 ft·lbf

0 ft·lbf to 1,200 ft·lbf

5 ft·lbf to 99.5 ft·lbf

10 ft·lbf to 40 ft·lbf

10 ft·lbf to 100 ft·lbf

How can we improve?

1,313 Products

Fastening and Joining

Sockets

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

Wrench Heads

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

Socket Adapters

Socket Adapters

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

Wrench Handles

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Bit Sockets

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

Strap Wrenches

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

Impact Wrenches

Impact Wrenches

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

Spanner Wrenches

Spanner Wrenches

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

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 Wrench Chucks

Impact Wrench Chucks

Harness torque to cut and prepare holes faster than any other method

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

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

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.)