1/2" Screwdrivers | McMaster-Carr

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Drive Style

External 12-Point

External Square

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Overall Length

15/16" to 1 1/8"

1 5/16" to 6 15/16"

1 1/2" to 2 1/4"

Grip Style

Bolt Clearance Type

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Square Drive Size

Shaft Overall Width

Thread Size

4-40 to 5/16"-32

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Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

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Fabric Roll-Up Pouch

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Plastic Clip Rail

Plastic Roll-Up Pouch

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Shaft Length

Fastener-Holding Mechanism

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DFARS Specialty Metals

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242 Products

Fastening and Joining

Nut Starters

Begin turning nuts in hard-to-reach spots

Screwdrivers

Tighten and loosen screws

Nutdrivers

Tighten and loosen nuts and bolts

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

L-Keys

Turn fasteners from either end and reach into tight spots

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

T-Handle Keys

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

Driver Shafts

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

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

Wrench Heads

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

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

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