Metric Ratchets | McMaster-Carr

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System of Measurement

Drive Size

Square Drive Size

Component

OD

Shaft Diameter

Overall Length

15/16" to 1 1/8"

Bolt Clearance Type

Drive Style

External 12-Point

External Spline

External Square

Tamper-Resistant Hex

Tamper-Resistant Torx

Face Width

Socket Shape

Material

Aluminum Bronze

Stainless Steel

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Socket Style

Overall Width

Number of Teeth

Wrench Style

Tip Style

Head Style

Wrench Opening Shape

Finish

Magnesium Phosphate Coated

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

Zinc Phosphate Coated

Drive Type

RoHS

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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1,499 Products

Fastening and Joining

Sockets

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

Bit Sockets

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

Combination Wrenches

Combination Wrenches

Use the open end when tightening in cramped spaces and the box end when you need extra grip

Box Wrenches

Grip all sides of a fastener to prevent slipping

Wrench Heads

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

Socket Wrenches

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

Socket Inserts

Slip into sockets to keep fasteners from falling out

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Socket Bits

Switch out worn or damaged bits instead of replacing your entire bit socket

Impact Drivers

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

Power Transmission

Ratchet Gears and Pawls

Ratchet Gears and Pawls

Transmit motion in one direction and stop it in the other

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