Metric Wrench Sets | McMaster-Carr

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System of Measurement

Unit of Measure

Wrench Style

Drive Size

Number of Pieces

Wrench Opening Shape

Head Style

Drive Style

Drilled Spanner

External 12-Point

External Spline

External Square

Tamper-Resistant Hex

Tamper-Resistant Torx

Ratcheting

Overall Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

1 5/16" to 4 3/4"

1 5/16" to 6 13/16"

1 1/2" to 1 3/4"

1 1/2" to 1 7/8"

Container Type

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Plastic Organizer

Finish

Magnesium Phosphate Coated

Phosphate Coated

Titanium Nitride (TiN) Coated

Material

Stainless Steel

Grade

Relative Length

Tip Style

Wrench Type

Appearance

Square Drive Size

RoHS

Performance

Corrosion Resistant

Drop Prevention

Electrically Insulating

Reversible Ratcheting

Static Dissipative

Tight Clearance

Driver Style

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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332 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

Wrench Heads

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

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

Box Wrenches

Grip all sides of a fastener to prevent slipping

Socket Inserts

Slip into sockets to keep fasteners from falling out

L-Keys

Turn fasteners from either end and reach into tight spots

Screwdrivers

Tighten and loosen screws

T-Handle Keys

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

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

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