Metric Wrenches | McMaster-Carr

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System of Measurement

Unit of Measure

Drive Size

Wrench Style

Wrench Opening Shape

12-Point Sure Grip

Head Style

Sold As

Drive Style

Drilled Spanner

External 12-Point

External Spline

External Square

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

Ratcheting

Overall Length

15/16" to 1 1/8"

Finish

Magnesium Phosphate Coated

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

Zinc Phosphate Coated

Head Thickness

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

Number of Pieces

Appearance

Relative Length

Square Drive Size

Wrench Type

Container Type

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Plastic Organizer

Plastic Roll-Up Pouch

Length

15/16" to 1 1/8"

Opening Angle

Number of Heads

RoHS

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

3,024 Products

Fastening and Joining

Combination Wrenches

Combination Wrenches

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

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Wrench Heads

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

Box Wrenches

Grip all sides of a fastener to prevent slipping

Sockets

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

Socket Wrenches

Socket Wrenches

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

Bit Sockets

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

Spanner Wrenches

Spanner Wrenches

Grab onto holes and slots to turn collars, bearings, and other machine tool components

Socket Inserts

Slip into sockets to keep fasteners from falling out

Socket Bits

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

Socket Adapters

Socket Adapters

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

L-Keys

Turn fasteners from either end and reach into tight spots

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Screwdrivers

Tighten and loosen screws

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

Impact Drivers

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

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

Containers, Storage, and Furniture

Wrench Organizers

Wrench Organizers

Keep wrenches in order at your workstation or when carrying them around your facility

Socket Organizers

Socket Organizers

Arrange sockets at your workstation or carry them neatly around your facility

Measuring and Inspecting

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

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