Bits | McMaster-Carr

Filter by

System of Measurement

Drive Size

Overall Length

Sold As

Hex Shank Size

Driver Style

Length

Tip Style

Screw Size

No. 12 to 5/16"

For Use On

Aluminum Honeycomb

Aluminum Laminate

Material

Aluminum Bronze

Carbide-Tipped Steel

Cubic Boron Nitride

Drill Bit Size

Finish

Aluminum Chromium Nitride (AlCrN) Coated

Aluminum Non-Ferrous (ANF) Coated

Aluminum Oxide Coated

Aluminum Titanium Chromium Nitride (AlTiCrN) Coated

Aluminum Titanium Nitride (AlTiN) Coated

Chromium Carbide (CrC) Coated

Diamondlike Carbon (DLC) Coated

Magnesium Phosphate Coated

Manganese Phosphate Coated

Square Drive Size

Socket Style

Number of Pieces

Thread Size

RoHS

Compliant with Exemptions

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

REACH

Socket Shape

Rounded 4-Point

Export Control Classification Number (ECCN)

DFARS Specialty Metals

For Bit Shank Type

Quick-Change Hex

How can we improve?

43,572 Products

Most Likely Products

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Drill Bits

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

Bit Sockets

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

All Results

Fastening and Joining

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Bit Adapters

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

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Screwdrivers

Tighten and loosen screws

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

L-Keys

Turn fasteners from either end and reach into tight spots

Driver Shafts

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

T-Handle Keys

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

Torque-Limiting Keys

Torque-Limiting Keys

Used to install carbide inserts in cutting tools, a handle limits the amount of torque generated

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

One-Way Screw Remover Bits

One-Way Screw Remover Bits

Use with a nutdriver to loosen one-way screws

Wing Nut Driver Bits

Wing Nut Driver Bits

Use with power tools to hold and turn wing nuts

Eyebolt and Hook Driver Bits

Eyebolt and Hook Driver Bits

Install and remove eyebolts and screw-in hooks

Wood Screw Threaded Stud Driver Bits

Wood Screw Threaded Stud Driver Bits

Install wood screw threaded studs, which are also known as dowel screws

Threaded Rod and Stud Driver Bits

Threaded Rod and Stud Driver Bits

Quickly install threaded rods and studs with a cordless drill, instead of by hand

Hanger Bolt Driver Bits

Hanger Bolt Driver Bits

Turn flat-end bolts and screws

L-Key Handles

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

Bit Sockets

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

Socket Adapters

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

Sockets

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

Socket Bits

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Wrench Heads

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

Ball Joint Sockets

Ball Joint Sockets

Install and remove ball joints in suspension and steering systems

Screw, Pipe, and Stud Extractors

Screw, Pipe, and Stud Extractors

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

Rivet Tool Accessories and Replacement Parts

Rivet Tool Accessories and Replacement Parts

Add accessories like nosepieces and jaws or replace seals and other parts on your rivet tool

Rivet Setters

Use when driving rivets with an air-powered hammer

Rivet Tools

Install and remove blind, solid, hollow, and other types of rivets

Rivet Tool Bucking Bars

Rivet Tool Bucking Bars

Place against the back side of your rivet while hammering the head

Pin Removal Punches

Pin Removal Punches

Strike with a hammer to loosen and remove pins and rivets

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 Bit Shank Adapters

Drill Bit Shank Adapters

Convert your power tool to fit different drill bit sizes or shank types

Drill Bit Extensions

Drill Bit Extensions

Expand the reach of drill bits to get into deep and hard-to-reach spots

Reamer Drill Bits

Reamer Drill Bits

Drill and finish holes in one pass

Drill Taps

Drill and thread holes with the same bit

Drill Bit Guides

Drill Bit Guides

Drill precise holes without building a fixture

Drill Stops

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

Drill Rig Thread Adapters

Drill Rig Thread Adapters

Change thread sizes on bits to use them in drill rigs

Countersink Drill Bits

Countersink Drill Bits

A single bit drills and creates an angled surface so oval and flat screw heads sit flush

Plug Cutters

Form wood plugs to conceal fastener heads in counterbored holes

Counterbore Drill Bits

Counterbore Drill Bits

A single bit drills and creates a flat surface for the head of a socket head cap screw

Drill/Screwdriver Bits

Drill/Screwdriver Bits

Quickly change between drilling countersunk holes and driving screws

Chip Catchers

Capture chips and dust when drilling holes

Drill Bit Inserts

Drill Bit Inserts

Pair with compatible drill bit bodies to precisely drill multiple holes

Friction Drill Bits

Friction Drill Bits

Pair with friction drills to melt holes that have an outer lip in sheet metal

Router Bits

Attach to routers and CNC machines to cut grooves, chamfers, and other detailed shapes

End Mills

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

End Mill Inserts

End Mill Inserts

Replace the cutting edge on your end mill insert holder instead of the entire tool

End Mill Insert Holders

End Mill Insert Holders

Pair with inserts to create end mills that have a replaceable cutting edge

Face Mills

Flatten and smooth the surface of wide workpieces in high-speed, high-volume applications

Face Mill Inserts

Face Mill Inserts

Pair with face milling insert holders to create custom face mills

Face Mill Insert Holders

Face Mill Insert Holders

Pair with face milling inserts to create custom face mills

Fly Cutters

Machine wide cuts on flat surfaces and leave a smoother finish than face mills

Gear Cutters

Mill spur gears with a 14 1/2° pressure angle

Burs

Cut excess material to smooth surfaces and holes using a rotary power tool like a die grinder

Deburring Bits

Remove sharp points from straight edges, holes, and pipe with a bit screwdriver

Deburring Blades

Deburring Blades

Scrape burs from flat surfaces and the edges of holes, sheets, and pipe using a changeable-blade tool

Deburring Tools

Deburring Tools

Changeable or fixed cutting blades shave rough edges from surfaces, holes, and pipe

Chisel Bits

Pair with powered hammers or needle scalers to chip material off of workpieces

Air Hammers

Chisel, cut, chip, scrape, and stake material more quickly than manual chisels

Grinding Bits

Pair with grinders for light material removal and precision grinding

Flap Wheels

Create a uniform finish on flat and curved surfaces without gouging them

Grinding Cones

For corners and the inside of castings, remove large amounts of material and leave a rough surface

Rotary Tool Router Bits

Rotary Tool Router Bits

Pair with rotary tools for routing, inlaying, and mortising in wood and other soft materials

Rotary Tool Chucks

Rotary Tool Chucks

Quickly swap accessories in and out of your rotary tool

Rotary Tool Accessory Kits

Rotary Tool Accessory Kits

Complete a wide range of cutting, grinding, and sanding tasks with your rotary tool

Rotary Tool Grinding Bits

Rotary Tool Grinding Bits

Pair with rotary tools to sharpen, debur, and grind metal surfaces

Rotary Tool Blades

Rotary Tool Blades

Replace the blade on your Dremel rotary tool

Rotary Tool Engraving Bits

Rotary Tool Engraving Bits

Pair with rotary tools for engraving and carving tasks

Rotary Tool Drywall Cutters

Rotary Tool Drywall Cutters

Pair with rotary tools to make controlled cuts in drywall, fiberglass, and laminate

Rotary Tool Cutoff Wheels

Rotary Tool Cutoff Wheels

Replace the cutoff wheel on your Dremel rotary tool

Rotary Tool Arbors

Rotary Tool Arbors

Attach cutoff wheels to grinders; also known as mandrels

Rotary Tool Sanding Sleeves

Rotary Tool Sanding Sleeves

Pair with rotary tools to smooth wood, fiberglass, and rubber or remove rust from metal

Rotary Tool Buffing and Polishing Kits

Rotary Tool Buffing and Polishing Kits

Buff, polish, and clean with rotary tools

Rotary Tool Tile Cutters

Rotary Tool Tile Cutters

Attach to rotary tools to make stable, controlled cuts in tile or grout

Spiral Saw Bits

Spiral Saw Bits

Replace the bit on your RotoZip spiral saw

Spiral Saws

Plunge cut directly into drywall and wood without a pilot hole

Hole Saws

Connect to a drill or drill press to make circular cuts

Hole Saw Arbors

Hole Saw Arbors

Secure a hole saw to a drill or drill press

Hole Saw Slug Removers

Hole Saw Slug Removers

Push or pull material out of hole saws to prevent binding

Slitting Saws

Pair with an arbor to cut narrow slots in workpieces

Taps

Cut internal threads for fasteners, pipe, conduit, and more

Tap and Drill Bit Sets

Tap and Drill Bit Sets

Drill holes and cut internal threads in a variety of sizes

Tap, Die, and Drill Bit Sets

Tap, Die, and Drill Bit Sets

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

Thread Mills

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

Tap and Die Sets

Tap and Die Sets

Cut and repair internal and external threads in many sizes

Thread Repair Tools

Thread Repair Tools

Restore lengths of rusted and damaged threads on screws, pipe, or conduit

Tap, Die, and Thread File Sets

Tap, Die, and Thread File Sets

Repair internal and external threads in a range of sizes

Tap and Die Wrench Sets

Tap and Die Wrench Sets

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

Countersinks

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

Countersink Extensions

Countersink Extensions

Lengthen the reach of threaded-shank countersinks

Counterbores

Enlarge the top of a hole to install socket and hex head screws flush with the surface

Counterbore Insert Holders

Counterbore Insert Holders

Pair with inserts to create flat-bottom holes

Center Drills

Drill cone-shaped openings to mate with lathe centers or start pilot holes for screws

Lathe Tool Inserts

Lathe Tool Inserts

Pair with lathes to add cuts and grooves to workpieces

Lathe Tools

Shape workpieces as they rotate on a lathe

Lathe Tool Blanks

Lathe Tool Blanks

Machine custom lathe tool bits

Lathe Tool Insert Holders

Lathe Tool Insert Holders

Secure inserts within lathes to add cuts and grooves to workpieces

Lathe Tool Blocks

Lathe Tool Blocks

Mount lathe tool holders to posts and turrets

Lathe Tool Holders

Lathe Tool Holders

Secure tools to lathe posts

Cutoff Blades

Separate a finished part from a workpiece; also known as parting blades

Hollow-Core Cutter Arbor Adapters

Hollow-Core Cutter Arbor Adapters

Modify hollow-core cutters to fit larger arbors on drill presses and milling machines

Drill Chuck Keys

Drill Chuck Keys

Open and close drill chuck jaws

Drill Chucks

Connect drill bits to hand-held drills, drill presses, and milling machines

Milling Machine Tool Holders

Milling Machine Tool Holders

Connect boring bars and other cutting tools to milling machines

Polisher Arbor Extensions

Polisher Arbor Extensions

Lengthen your polisher's reach to access deep grooves and tight spots

Wheel Arbors

Attach abrasive wheels to hand-held drills and die grinders; also known as mandrels

Flap Wheel Arbors

Flap Wheel Arbors

Attach flap wheels to tools that accept a shank; also known as mandrels

Wheel Brush Arbors

Wheel Brush Arbors

Mount wheel brushes with an arbor hole to hand-held drills and die grinders; also known as mandrels

Spiral Saw Collets

Spiral Saw Collets

Connect bits to RotoZip spiral saws

Lathe Tool Holder Bushings

Lathe Tool Holder Bushings

Increase the diameter of drill bits and other shank-style cutting tools to fit CNC lathe tool blocks

Hole Saw Arbor Extensions

Hole Saw Arbor Extensions

Reach your hole saw into spots where your drill is too big to fit

Cartridge Sanding Roll Arbors

Cartridge Sanding Roll Arbors

Connect cartridge sanding rolls to hand-held drills and die grinders

Tap Collets

Hold your tap firmly in a collet chuck or tap holder to create internal threads in workpieces

Grinding Bit Arbors

Grinding Bit Arbors

Attach grinding bits to tools and switch bits without removing the arbor; also known as mandrels

Cutoff Blade Holders

Cutoff Blade Holders

Secure cutoff blades in lathe tool posts

Hole Saw Pilots

Hole Saw Pilots

Center your hole saw when enlarging existing holes

Polishing Bobs

Attach to a drill or grinder to polish small and hard-to-reach areas

Buffing Kits

Everything you need to remove scratches and surface imperfections with a buffer or polisher

Buffing and Polishing Wheel Spindles

Buffing and Polishing Wheel Spindles

Mount wheels to your tool’s shaft, collet, or drill chuck

Reamers

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

Sanding Bits

Smooth out small, recessed, and hard-to-reach areas, and also remove paint and rust

Sanding Sleeve Drums

Sanding Sleeve Drums

Convert grinders or hand-held power tools into sanding tools

Sanding Sleeves

Sanding Sleeves

Use with grinders to shape, deburr, and sand edges and internal surfaces

Sanding Drum and Sleeve Kits

Sanding Drum and Sleeve Kits

Assortments include a variety of sanding drums and sleeves to shape and deburr internal surfaces

Rotary Sanding Pads

Rotary Sanding Pads

Reach into pipes, tubes, corners, and slots to smooth their surfaces and remove paint and rust

Cartridge Sanding Rolls

Cartridge Sanding Rolls

As the outer sanding surface wears away, new abrasive is exposed

Rotary Sanding Pad Arbors

Rotary Sanding Pad Arbors

Connect rotary sanding pads to hand-held drills and die grinders

Bevelers

Create smooth, beveled edges on flat plates or plastic pipe and tubing

Beveler Adapters

Beveler Adapters

Pair with cordless grinders to bevel smooth edges on plastic pipe and tubing

Cup and End Brushes

Cup and End Brushes

Attach to a power tool to clean flat, curved, and irregular surfaces

Tube Brushes

Remove contaminants from tubes, pipes, and holes

Wheel Brushes

Bristles on the edge of the wheel clean, sand, and debur targeted areas

Knurls

Pair with a knurling tool to add patterns to workpieces for a better grip

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

Cylinder Hones

Remove material and leave a smooth, uniform finish inside cylinders

Deflashing Tools

Deflashing Tools

Remove flash from plastic parts after additive manufacturing or injection molding

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

Containers, Storage, and Furniture

Bit Organizers

Store and organize several sizes and styles of bits

Tap and Drill Bit Stands

Tap and Drill Bit Stands

Organize taps and drill bits by size

Hex Key Organizers

Hex Key Organizers

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

Drill Bit Pouches

Drill Bit Pouches

Store and carry drill bits for easy access

Tool Pouches

Slip these pouches onto your belt to keep tools within reach

Screw, Pipe, and Stud Extractor Cases

Screw, Pipe, and Stud Extractor Cases

Store your extractors and corresponding drill bits

Machine Tool Cabinets

Machine Tool Cabinets

Organize and store taps, drill bits, and end mills in labeled compartments

Machine Tool Workbench Drawers

Machine Tool Workbench Drawers

Mount under a workbench or shelf to store bits in labeled compartments

Workbench Drawers

Workbench Drawers

Mount or stack under workbenches to store papers, small parts, and tools

Bur Containers

Store and organize burs in fabric pouches, plastic cases, or wood boxes

Measuring and Inspecting

Rivet Hole Locators

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

Communication

Plotter Pen Router Bits

Plotter Pen Router Bits

Hold a pen rather than a blade so you can trace a CNC machine’s path before you cut

Facility and Grounds Maintenance

Vacuum Cleaner Attachments

Vacuum Cleaner Attachments

Add brushes, crevice tools, blower nozzles, and extension wands to your vacuum hose

Building and Machinery Hardware

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Fluid Handling

Pressurized Pipe Tapping Kits

Pressurized Pipe Tapping Kits

Include the tools you need to add a new line without having to shut down your piping system

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