Square Drive Bits | McMaster-Carr

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Product Family

Ball Joint Sockets

Impact Wrench Chucks

Lathe Tool Blanks

Lathe Tool Holders

Lathe Tool Insert Holders

Ratchet Wrenches

Screw, Pipe, and Stud Extractors

Screwdriver Bits

Socket Adapters

Socket Extensions

Square Drive Size

System of Measurement

Drive Size

Overall Length

15/16" to 1 1/8"

31/32" to 3 1/16"

Sold As

Shank Type

Quick-Change Hex

Thread Size

Socket Style

Tip Style

Length

15/16" to 1 1/8"

31/32" to 3 1/16"

Socket Shape

Rounded 4-Point

Finish

Black/Gold Oxide

Chromium Carbide (CrC) Coated

Magnesium Phosphate Coated

Manganese Phosphate Coated

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Number of Pieces

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

Spline Drive-to-Square Drive Adapter

Square Drive Size Adapter

Torque-and-Angle Measuring Adapter

Torque-Limiting Adapter

For Use On

Stainless Steel

Material

Aluminum Bronze

Carbide-Tipped High-Speed Steel

Stainless Steel

Driver Style

Bolt Clearance Type

Drive Type

Hex Shank Size

RoHS

Compliant with Exemptions

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

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

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8,711 Products

Fastening and Joining

Bit Sockets

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

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Wrench Heads

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Ball Joint Sockets

Ball Joint Sockets

Install and remove ball joints in suspension and steering systems

Impact Wrench Chucks

Impact Wrench Chucks

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

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Screwdrivers

Tighten and loosen screws

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Torque Screwdriver Shafts

Torque Screwdriver Shafts

Pair with a handle to create a custom torque screwdriver

Bit Adapters

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

L-Keys

Turn fasteners from either end and reach into tight spots

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

Fabricating and Machining

Taps

Cut internal threads for fasteners, pipe, conduit, and more

Tap, Die, and Drill Bit Sets

Tap, Die, and Drill Bit Sets

Cut and repair internal and external threads and drill holes in many different sizes

Tap and Drill Bit Sets

Tap and Drill Bit Sets

Drill holes and cut internal threads in a variety of sizes

Tap and Die Sets

Tap and Die Sets

Cut and repair internal and external threads in many sizes

Tap, Die, and Thread File Sets

Tap, Die, and Thread File Sets

Repair internal and external threads in a range of sizes

Tap, Drill Bit, and Reamer Sets

Tap, Drill Bit, and Reamer Sets

The fastest way to prepare holes with a hand tool

Lathe Tools

Shape workpieces as they rotate on a lathe

Lathe Tool Blanks

Lathe Tool Blanks

Machine custom lathe tool bits

Lathe Tool Insert Holders

Lathe Tool Insert Holders

Secure inserts within lathes to add cuts and grooves to workpieces

Lathe Tool Holders

Lathe Tool Holders

Secure tools to lathe posts

Drill Taps

Drill and thread holes with the same bit

Reamers

Finish holes to an exact size, correct misaligned holes, and remove burrs

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