3/8" Square Drive Impact Wrenches | McMaster-Carr

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Square Drive Size

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Less than 500 ft·lbf

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Less than 500 ft·lbf

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External Square

Tamper-Resistant Torx

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31/32" to 3 1/16"

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Air Hammer Adapter

Hex Head Adapter

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Quick-Change Adapter

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Square Drive Size Adapter

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Batteries Included

Minimum Working Torque

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

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DFARS Specialty Metals

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367 Products

Impact Wrenches

Air-Powered Impact Wrenches

Air-Powered Impact Wrenches

Pair with compressed air to loosen or drive in fasteners with high force

Cordless Impact Wrenches

Cordless Impact Wrenches

Run on a rechargeable battery, so you can take them anywhere on your site

Hammer-Driven Impact Wrenches

Hammer-Driven Impact Wrenches

Strike with a hammer to tighten and loosen fasteners

Other Products

Socket Adapters

Socket Adapters

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

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

Impact Drivers

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

Sockets

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

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

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