Metric Allen Hex Bits | McMaster-Carr

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7,694 Products

Fastening and Joining

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Screwdrivers

Tighten and loosen screws

Driver Shafts

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

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

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Bit Adapters

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

Bit Sockets

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

Sockets

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

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Box Wrenches

Grip all sides of a fastener to prevent slipping

Socket Adapters

Socket Adapters

Convert the drive size of sockets to fit your wrench or hand tool

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

Fabricating and Machining

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

Hollow-Core Cutters

Hollow-Core Cutters

Use in magnetic-base drills to form burr-free holes by only cutting the outside edge of a hole

Drill Stops

Limit how far bits can drill to create identical hole depths every time

Drill Bit Guides

Drill Bit Guides

Drill precise holes without building a fixture

Tap, Die, and Drill Bit Kits

Tap, Die, and Drill Bit Kits

Cut and repair internal and external threads and drill holes in many different sizes

Taps

Cut internal threads using a tap wrench or machine tool

Tap, Die, and Thread File Kits

Tap, Die, and Thread File Kits

Repair internal and external threads in a range of sizes

Tap and Drill Bit Kits

Tap and Drill Bit Kits

Drill holes and cut internal threads in a variety of sizes

Tap and Die Kits

Tap and Die Kits

Cut and repair internal and external threads in many sizes

Thread Mills

Install in a CNC machine to cut a range of internal and external threads with a single tool

End Mills

Cut and shape material to create precise slots, grooves, and profiles

Hole Saws

Connect to a drill or drill press to make circular cuts

Slitting Saws

Pair with an arbor to cut narrow slots in workpieces

Reamers

Finish holes to an exact size, correct misaligned holes, and remove burrs

Electrical Discharge Machining Electrodes

Electrical Discharge Machining Electrodes

Create pilot holes and other small holes to run EDM wire through; use with hole-popping EDM machines

Electrical Discharge Machining Electrode Guides

Electrical Discharge Machining Electrode Guides

Hold EDM electrodes in place as they penetrate workpieces

Countersinks

Cut a cone-shaped opening in a hole to install flat head screws and rivets flush with the surface

Lathe Tools

Remove material from workpieces as they rotate on a lathe

Containers, Storage, and Furniture

Hex Key Organizers

Hex Key Organizers

Store L-keys and T-handle keys according to size

Cabinets

Store objects on enclosed shelves

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