Round-Shank Drill Bits | McMaster-Carr

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Aluminum Chromium Nitride (AlCrN) Coated

Aluminum Non-Ferrous (ANF) Coated

Aluminum Titanium Nitride (AlTiN) Coated

Black Oxide

Carbide Tipped

Diamond Coated

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Titanium Aluminum Nitride (TiAlN) Coated

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Titanium Carbon Nitride (TiCN) Coated

Titanium Diboride (TiB₂) Coated

Titanium Nitride (TiN) Coated

Drill Bit Point Type

Decimal Size Equivalent

Material

Shank Size

Point Angle

Overall Length

Flute Direction

Maximum Drilling Depth

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Flute Type

Bit Style

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Length

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

Number of Pieces

15,395 Products

About Drill Bits

Compare material, finish, length class, and decimal size equivalents.

Drill Bits

Sold Individually

High-Speed Steel Drill Bits

Cut holes in a variety of metals, from the softest aluminum to the hardest steel

1,970 products

Cobalt Steel Drill Bits

Tough and wear resistant to last at least twice as long as high-speed steel bits

965 products

Carbide Drill Bits

The hardest and most wear-resistant drill bits you can buy

477 products

Carbide-Tipped Drill Bits

Stronger than cobalt and high-speed steel, bits stay sharp at high temperatures

333 products

Chip-Clearing Cobalt Steel Drill Bits

Avoid clogs and dissipate heat with bits that last at least twice as long as high-speed steel

244 products

Left-Hand High-Speed Steel Drill Bits

Remove stripped screws with flutes that spiral in reverse from other bits

148 products

Chip-Clearing High-Speed Steel Drill Bits

Prevent clogs and dissipate heat when drilling most metals

476 products

Left-Hand Cobalt Steel Drill Bits

The flutes spiral in the opposite direction of other bits and stay sharp longer than high-speed steel

58 products

Short-Flute High-Speed Steel Drill Bits

The rigidity of short-length bits without sacrificing reach

180 products

Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

Drill abrasive materials cleanly

170 products

High-Speed Steel Drill Bits for Plastic

Penetrate gradually to prevent cracking and chipping

116 products

Carbide Drill Bits for Hardened Steel

The hardest and most wear-resistant bits handle the heavy pressure needed to penetrate hardened steel

190 products

Carbide-Tipped Drill Bits for Masonry and Concrete

Crush tough materials to make holes in masonry

62 products

Short-Flute Cobalt Steel Drill Bits

Combine the toughness and wear resistance of cobalt with short flutes for rigidity

159 products

Smooth-Finish Carbide Drill Bits

More cutting edges for a consistent finish

96 products

High-Speed Steel Precise-Cut Drill Bits for Wood

Point stays sharp longer to cut accurate straight and overlapping holes

37 products

High-Speed Steel Step Drill Bits

Simplify jobs by drilling multiple hole sizes using a single bit

11 products

Coolant-Fed Carbide-Tipped Drill Bits

Coolant flows through the bit to reduce heat and evacuate chips

50 products

Multidiameter High-Speed Steel Step Drill Bits

With no fixed diameters, cut holes of almost any size with one bit

5 products

Carbide-Tipped Drill Bits for Hardened Steel

Straight flutes withstand the heavy pressure needed to penetrate hardened steel

42 products

Short-Flute Carbide-Tipped Drill Bits

Our strongest short-flute bits stay sharp when drilling abrasive materials, such as titanium

89 products

Hole-Starting Carbide Drill Bits

Harder and last longer than cobalt steel, bits create an accurate starting place in your workpiece

89 products

Coolant-Fed Carbide Drill Bits

The hardest and most wear-resistant bits deliver coolant to reduce heat and evacuate chips

50 products

Fast-Cutting Smooth-Finish Drill Bits for Wood

Create less friction and heat buildup than other smooth-finish bits to run faster and last longer

36 products

Chip-Clearing Cobalt Steel Drill Bits for Nickel and Stainless Steel

Aggressively cut difficult-to-machine metals without clogging

29 products

Carbide-Tipped Drill Bits for Glass and Ceramic

Extremely hard and wear resistant to maintain a sharp edge cut after cut

10 products

Precise-Cut High-Speed Steel Drill Bits

Produce holes so precise that you don’t need to finish them with a reamer

11 products

High-Speed Steel Drill Bits for Wood Screws

Match the exact thread and diameter of wood screws for a perfect fit

26 products

Precise-Cut Carbide Drill Bits

Even on the hardest materials, cut holes so precise that you don’t need to finish them with a reamer

11 products

Smooth-Finish Drill Bits for Wood

Multiple teeth cut away large amounts of material to bore clean, flat-bottom holes

29 products

Carbide Drill Bits for Sheet Metal

The hardest and most wear-resistant bits make shallow cuts without snagging and deforming thin metal and tubing

19 products

Chip-Clearing High-Speed Steel Drill Bits for Aluminum, Brass, and Bronze

Wide flutes clear chips from soft metals that can gum up other drill bits

29 products

Chip-Clearing Carbide Drill Bits

The hardest and most wear-resistant bits prevent clogs and dissipate heat

80 products

Chip-Clearing Drill Bits for Wood

Prevent clogs that wear the bit and slow down drilling

15 products

High-Speed Steel Drill Bits for Sheet Metal

Make shallow cuts without snagging and deforming thin metal and tubing

17 products

Carbide-Insert Drill Bits

Once the cutting edges wear down, just change the inserts

70 products

Steel Precise-Cut Drill Bits for Wood

Cut accurate straight and overlapping holes, even across the grain

7 products

Hole-Starting Cobalt Steel Drill Bits

Create an accurate starting place for a precise final hole

26 products

Carbide-Tipped Smooth-Finish Drill Bits for Wood

Stay sharp longer on tough materials, such as plywood and hard woods.

18 products

Carbide-Tipped Drill Bits for Stone

Grind through stone, granite, and slate tile without cracking it

6 products

Chip-Clearing Carbide-Tipped Drill Bits for Masonry and Concrete

Lift dust and debris out of the hole more quickly than standard masonry bits

29 products

Adjustable-Blade Drill Bits for Wood

Bore a variety of hole sizes with one bit

2 products

Tapping Screw Installation Drill Bits for Masonry and Concrete

Slightly smaller than the screw size for a tight fit after installation

8 products

Spot-Weld-Removal High-Speed Steel Drill Bits

Separate metal panels without drilling all the way through them

7 products

Nonsparking Drill Bits

Drill safely in flammable environments

4 products

Flexible-Shaft Drill Bits for Wire Installation

Drill inside walls and between floors to install electrical wiring without cutting extra holes

11 products

Drill Bits for Paper and Fabric

Razor-sharp cutting for binding documents and sample swatches

7 products

High-Speed Steel Drill Bits for Wire Installation

Feed wiring through walls with the same tool used to make the hole

8 products

Rebar-Cutting Carbide-Tipped Drill Bits

No need to move the hole when you encounter rebar in concrete

17 products

Carbide-Tipped Drill Bits for Wire Installation

Make holes in wood, masonry, and concrete walls and feed wiring through them

6 products

Drill Bits with Countersunk-Hole Guide

Center holes perfectly before installing hinges and other hardware

4 products

Sold as Sets

High-Speed Steel Drill Bit Sets

Cut holes in a variety of metals, from the softest aluminum to the hardest steel

64 products

Cobalt Steel Drill Bit Sets

Tough and wear resistant to last at least twice as long as high-speed steel bits

21 products

Left-Hand High-Speed Steel Drill Bit Sets

Remove stripped screws with flutes that spiral in reverse from other bits

6 products

Carbide Drill Bit Sets

The hardest and most wear-resistant drill bits you can buy

5 products

Carbide-Tipped Drill Bit Sets

Stronger than cobalt and high-speed steel, bits stay sharp at high temperatures

2 products

Short-Flute Cobalt Steel Drill Bit Sets

The rigidity of short-length bits without sacrificing reach

1 product

High-Speed Steel Drill Bit Sets for Plastic

Penetrate gradually to prevent cracking and chipping

1 product

Precise-Cut Drill Bit Sets for Wood

Cut accurate straight and overlapping holes, even across the grain

1 product

Carbide-Tipped Drill Bit Sets for Masonry and Concrete

Crush tough materials to make holes in masonry

4 products

Chip-Clearing High-Speed Steel Drill Bit Sets

Prevent clogs and dissipate heat when drilling most metals

3 products

Smooth-Finish Drill Bit Sets for Wood

Multiple teeth cut away large amounts of material to bore clean, flat-bottom holes

2 products

Chip-Clearing Carbide-Tipped Drill Bit Sets for Masonry and Concrete

Lift dust and debris out of the hole more quickly than standard masonry bits

3 products

Finger Grip Drill Bits

Drill by hand in thin and delicate pieces of wood and plastic that a power tool would split

4 products

Other Products

Center Drills

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

342 products

Tap and Drill Bit Sets

Drill holes and cut internal threads in a variety of sizes

14 products

Countersinks

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

134 products

End Mills

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

7,698 products

Counterbores

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

30 products

Drill Bit Extensions

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

107 products

Countersink Drill Bits

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

17 products

Drill Bit Shank Adapters

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

16 products

Reamer Drill Bits

Drill and finish holes in one pass

48 products

Hollow-Core Cutter Arbor Adapters

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

3 products

Counterbore Drill Bits

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

23 products

Router Bits

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

32 products

Drills

Cut holes and drive screws with cordless, electric, air-powered, and manual drills

62 products

Plug Cutters

Form wood plugs to conceal fastener heads in counterbored holes

8 products

Drill Bit Guides

Drill precise holes without building a fixture

2 products

Drill Chucks

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

111 products

Socket Adapters

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

2 products

Drill Head Adapters

Adjust the cutting angle of your drill to get into recessed and hard-to-reach spots

2 products