Allen Tools | McMaster-Carr

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System of Measurement

Drive Size

Tip Style

Sold As

Overall Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

1 1/4" to 4 11/16"

1 5/16" to 2 1/8"

Driver Style

Grip Style

Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

1 1/4" to 4 11/16"

1 5/16" to 2 1/8"

Square Drive Size

Finish

Magnesium Phosphate Coated

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

Zinc Flake Coated

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

Relative Length

Socket Style

Number of Pieces

Long Leg Length

Color

Fluorescent Orange

Performance

Adjustable Length

Changeable Head

Changeable Shaft

Corrosion Resistant

Drop Prevention

Electrical Insulating

Fastener Holding

High Visibility

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Shaft Length

3/16" to 2 1/8"

3/16" to 2 5/16"

3/16" to 2 1/2"

3/16" to 3 1/2"

3/16" to 3 13/16"

3/16" to 4 5/16"

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Driver Type

Container Type

Canvas Bag with Zipper Closure

Canvas Case with Zipper Closure

Canvas Roll-Up Pouch

Compartmented Metal Box

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Metal Wall-Mount Case

Plastic Clip Rail

How can we improve?

4,145 Products

Fastening and Joining

T-Handle Keys

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

L-Keys

Turn fasteners from either end and reach into tight spots

Screwdrivers

Tighten and loosen screws

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Impact Drivers

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

Screw Starters

Grip and start turning screws that are too small to hold or located in hard-to-reach spots

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

L-Key Handles

Comfort with every turn—these upgrade your L-keys into T-handle keys

Driver Extension Adapters

Driver Extension Adapters

Create a tool that’s as long as you need to reach deeply recessed fasteners

Bit Sockets

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

Socket Bits

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

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

Wrench Heads

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

Backup Wrenches

Backup Wrenches

Pair with a head and handle to create a wrench that keeps nuts from turning as you tighten bolts

Torque Wrench Heads

Torque Wrench Heads

Pair with torque-limiting handles to create a custom torque wrench

Tool Sets

Secure fasteners and complete a variety of other maintenance tasks

Fabricating and Machining

Lathe Tool Insert Holder Hex Keys

Lathe Tool Insert Holder Hex Keys

Replace the hex keys for your lathe tool insert holder

Tap and Die Wrench Sets

Tap and Die Wrench Sets

Switch between internal and external threading with interchangeable tap and die adapters

Tap Extensions

Extend the length of your tap to cut in hard-to-reach areas

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