Square Drive Ratchet Wrenches | McMaster-Carr

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System of Measurement

Square Drive Size

Overall Length

Head Style

Material

Beryllium Copper

Stainless Steel

OD

Finish

Corrosion-Resistant Coated

Magnesium Phosphate Coated

Phosphate Coated

Zinc Yellow-Chromate Plated

Head Shape

Drive Size

Wrench Style

Retaining Ring Style

Ratcheting

Length

Unit of Measure

Socket Type

Air Hammer Adapter

Dual-Drive Socket Adapter

Finger-Tightening Adapter

Hex Head Adapter

Hex Shank-to-Square Drive Adapter

Quick-Change Adapter

Ratchet Adapter

Secure-Hold Socket Adapter

Spline Drive-to-Square Drive Adapter

Square Drive Size Adapter

Torque-and-Angle Measuring Adapter

Torque-Limiting Adapter

Retaining Ring Type

Torque

0 in·lbf to 15 in·lbf

0 in·lbf to 30 in·lbf

0 in·lbf to 75 in·lbf

0 in·lbf to 150 in·lbf

0 in·lbf to 300 in·lbf

0 ft·lbf to 35 ft·lbf

0 ft·lbf to 40 ft·lbf

0 ft·lbf to 55 ft·lbf

0 ft·lbf to 60 ft·lbf

0.2 ft·lbf to 4.4 ft·lbf

2.6 in·lbf to 53.1 in·lbf

0.4 ft·lbf to 8.9 ft·lbf

5.3 in·lbf to 106.2 in·lbf

Turn Required to Ratchet

Groove Diameter

Drive Style

External Octagon

External Square

Socket Retainer Style

RoHS

REACH

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

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

1,085 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

Quick-Release Ratchet Wrenches

Quick-Release Ratchet Wrenches

Push a button to release the socket from the wrench

Sealed-Head Quick-Release Ratchet Wrenches

Sealed-Head Quick-Release Ratchet Wrenches

A gasket protects against debris and a button releases the socket

Flex-Head Ratchet Wrenches

Flex-Head Ratchet Wrenches

The head pivots 180° to reach fasteners in tight spots

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

Sealed-Head Ratchet Wrenches with Tether Ring

Sealed-Head Ratchet Wrenches with Tether Ring

Hook to a carabiner or lanyard to prevent drops

Air-Powered Ratchet Wrenches

Air-Powered Ratchet Wrenches

Run on air to turn fasteners quicker than manual ratchet wrenches

Adjustable-Length Ratchet Wrenches

Adjustable-Length Ratchet Wrenches

The shaft extends and locks for further reach

Replaceable-Head Ratchet Wrenches

Replaceable-Head Ratchet Wrenches

When the head becomes worn or damaged, change it out for a new one

Fold-Up Ratchet Wrenches

Fold-Up Ratchet Wrenches

Bend the handle to reach over obstructions or fold to create a palm ratchet

Tight-Clearance Ratchet Wrenches

Tight-Clearance Ratchet Wrenches

Rollers silently engage the ratchet to work in the tightest of spaces

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

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

Sealed Flex-Head Ratchet Wrenches

Sealed Flex-Head Ratchet Wrenches

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

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

Nonsparking Ratchet Wrenches

Nonsparking Ratchet Wrenches

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

Swivel-Head Ratchet Wrenches

Swivel-Head Ratchet Wrenches

The head swivels for more flexibility than flex-head ratchets

Quick-Release Fold-Up Ratchet Wrenches

Quick-Release Fold-Up Ratchet Wrenches

The convenience of quick socket changes with the versatility of a folding wrench

Cordless Ratchet Wrenches

Cordless Ratchet Wrenches

The motor stops when the fastener is tight

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

Ratchet Wrench and Adapter Sets

Ratchet Wrench and Adapter Sets

Turn sockets in a variety of hard-to-reach spots

Sealed-Head Air-Powered Ratchet Wrenches

Sealed-Head Air-Powered Ratchet Wrenches

The enclosed steel head seals lubrication in and keeps dirt, dust, and moisture out

Tapered-Handle Ratchet Wrenches

Tapered-Handle Ratchet Wrenches

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

Electrically Insulating Ratchet Wrenches

Electrically Insulating Ratchet Wrenches

Protect against accidental contact with live electrical circuits

Twist-Handle Ratchet Wrenches

Twist-Handle Ratchet Wrenches

Rotate the grip to tighten a socket

Dual-Size Ratchet Wrenches

Dual-Size Ratchet Wrenches

Flip between 1/4″ and 3/8″ drive-size sockets without switching out your wrench

Offset Flex-Head Ratchet Wrenches

Offset Flex-Head Ratchet Wrenches

Offset Flex-Head Ratchet Wrenches

Sealed Offset Flex-Head Ratchet Wrenches

Sealed Offset Flex-Head Ratchet Wrenches

Reach over obstructions and keep debris out of the ratchet head

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

Wrench Handles

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

Wrench Heads

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Socket Drivers

Tighten and loosen sockets from above when there isn't room to swing a standard wrench

Hot Stick Heads

Hot Stick Heads

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

Retaining Rings

Retaining Rings

Hold components on a shaft

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Sockets

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

Tag Rings

Loop onto tags to attach them to lanyards, key rings, and other objects

Split Rings

Secure clevis pins, connect components, or add a pull handle; also known as key rings

Curtain Hooks

Hang curtains from rods

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