1/2" Square Drive Ratchets | McMaster-Carr

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System of Measurement

Square Drive Size

Head Style

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"

Head Shape

Finish

Magnesium Phosphate Coated

Manganese Phosphate Coated

Phosphate Coated

Drive Size

Wrench Style

Turn Required to Ratchet

Material

Beryllium Copper

Stainless Steel

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"

Bolt Clearance Type

Ratcheting

Socket Shape

Socket Retainer Style

Power Source

Drive Style

External 8-Point

External 12-Point

External Pentagon

External Square

External Torx Plus

Tamper-Resistant Torx

Wrench Type

Sold As

Maximum Torque

Less than 1,000 ft·lbf

1,000 ft·lbf to 1,999 ft·lbf

Less than 100 N-m

100 N-m to 249 N-m

250 N-m to 499 N-m

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

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

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

1,351 Products

Ratchet Wrenches

Ratchet Wrenches

Ratchet Wrenches

Turn fasteners without removing and repositioning the wrench

Sealed-Head Ratchet Wrenches

Sealed-Head Ratchet Wrenches

A gasket seals lubrication in and keeps dirt, dust, and moisture out

Sealed-Head Quick-Release Ratchet Wrenches

Sealed-Head Quick-Release Ratchet Wrenches

A gasket protects against debris and a button releases the socket

Quick-Release Ratchet Wrenches

Quick-Release Ratchet Wrenches

Push a button to release the socket from the wrench

Adjustable-Length Ratchet Wrenches

Adjustable-Length Ratchet Wrenches

The shaft extends and locks for further reach

Flex-Head Ratchet Wrenches

Flex-Head Ratchet Wrenches

The head pivots 180° to reach fasteners in tight spots

Sealed Flex-Head Ratchet Wrenches

Sealed Flex-Head Ratchet Wrenches

The head pivots to access tight places and the gasket keeps out debris

Tapered-Handle Ratchet Wrenches

Tapered-Handle Ratchet Wrenches

Line up holes to insert bolts, then flip the wrench around to tighten

Quick-Release Flex-Head Ratchet Wrenches

Quick-Release Flex-Head Ratchet Wrenches

The head pivots to reach tight spots and a button releases the socket

Air-Powered Ratchet Wrenches

Air-Powered Ratchet Wrenches

Run on air to turn fasteners quicker than manual ratchet wrenches

Sealed-Head Ratchet Wrenches with Tether Ring

Sealed-Head Ratchet Wrenches with Tether Ring

Hook to a carabiner or lanyard to prevent drops

Adjustable-Length Quick-Release Ratchet Wrenches

Adjustable-Length Quick-Release Ratchet Wrenches

Extend the length and lock in place at set increments for more reach

Nonsparking Ratchet Wrenches

Nonsparking Ratchet Wrenches

Made of aluminum-bronze that won't generate sparks in hazardous locations

Foreign Object Damage (FOD) Prevention Ratchet Wrenches

Foreign Object Damage (FOD) Prevention Ratchet Wrenches

There are no internal screws or small parts that can fall into equipment

Fingertip Ratchet Wrenches

Fingertip Ratchet Wrenches

Feel resistance in your fingers to prevent overtightening

Adjustable-Length Quick-Release Flex-Head Ratchet Wrenches

Adjustable-Length Quick-Release Flex-Head Ratchet Wrenches

Pivot the head and extend the handle to reach fasteners in challenging spots

Cordless Ratchet Wrenches

Cordless Ratchet Wrenches

The motor stops when the fastener is tight

Electrically Insulating Ratchet Wrenches

Electrically Insulating Ratchet Wrenches

Protect against accidental contact with live electrical circuits

Adjustable-Length Flex-Head Ratchet Wrenches

Adjustable-Length Flex-Head Ratchet Wrenches

The handle extends and the head pivots to access fasteners in hard-to-reach spots

Other Products

Socket Adapters

Socket Adapters

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

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

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Drum Plug Sockets

Drum Plug Sockets

Turn with a ratchet wrench to install and remove screw-in drum plugs

Hot Stick Heads

Hot Stick Heads

Swap out the head on your hot stick to operate switches, pull cotter pins, and more

Impact Wrenches

Impact Wrenches

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

Speeder Handles

Speeder Handles

Crank the handle to fasten nuts and bolts quickly

Wrench Heads

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

Impact Drivers

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

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Bit Adapters

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

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