1" Square Drive Wrenches | McMaster-Carr

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System of Measurement

Square Drive Size

Drive Size

Overall Length

Socket Shape

Bolt Clearance Type

Drive Style

External 12-Point

External Square

Maximum Torque

Less than 1,000 ft·lbf

1,000 ft·lbf to 1,999 ft·lbf

2,000 ft·lbf to 2,999 ft·lbf

3,000 ft·lbf to 3,999 ft·lbf

500 N-m to 999 N-m

1,000 N-m or greater

OD

Head Style

Length

Torque

0 ft·lbf to 1,000 ft·lbf

0 ft·lbf to 1,200 ft·lbf

140 ft·lbf to 700 ft·lbf

158 ft·lbf to 1,051 ft·lbf

200 ft·lbf to 600 ft·lbf

200 ft·lbf to 810 ft·lbf

200 ft·lbf to 900 ft·lbf

200 ft·lbf to 1,000 ft·lbf

240 ft·lbf to 1,000 ft·lbf

255 ft·lbf to 1,050 ft·lbf

300 ft·lbf to 1,050 ft·lbf

350 ft·lbf to 1,100 ft·lbf

370 ft·lbf to 1,100 ft·lbf

900 ft·lbf to 1,800 ft·lbf

1,000 ft·lbf to 1,600 ft·lbf

1,000 ft·lbf to 1,950 ft·lbf

Wrench Style

Drive Type

Socket Type

Quick-Change Adapter

Spline Drive-to-Square Drive Adapter

Square Drive Size Adapter

Head Shape

Finish

Magnesium Phosphate Coated

Phosphate Coated

Zinc Phosphate Coated

Ratcheting

Sold As

Socket Style

Material

Polyurethane Plastic

REACH

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

DFARS Specialty Metals

RoHS

Export Control Classification Number (ECCN)

How can we improve?

322 Products

Fastening and Joining

Sockets

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Impact Wrenches

Impact Wrenches

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

Socket Adapters

Socket Adapters

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

Socket Retaining Rings

Socket Retaining Rings

Secure sockets and adapters to impact tools

Wrench Handles

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

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

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