No. 1 Wrenches | McMaster-Carr

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System of Measurement

Drive Size

Driver Style

Sold As

Shank Type

Knurled-End Hex

Quick-Change Hex

Grip Style

Overall Length

1 1/4" to 1 3/8"

Driver Type

Tip Style

Wrench Style

For Bit Shank Type

Quick-Change Hex

Number of Pieces

Container Type

Canvas Roll-Up Pouch

Plastic Clip Rail

Material

Beryllium Copper

Stainless Steel

Screw Size

Square Drive Size

Head Style

Length

1 1/4" to 1 3/8"

Bit-Holding Mechanism

Quick-Change Chuck

Unit of Measure

For Bit Hex Shank Size

RoHS

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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255 Products

Fastening and Joining

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

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Impact Drivers

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

L-Keys

Turn fasteners from either end and reach into tight spots

Ratchet Wrench/Screwdrivers

Ratchet Wrench/Screwdrivers

Switch between sockets and bits to turn a variety of fasteners with a single tool

Bit Sockets

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

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