CNC Drill Bits | McMaster-Carr

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Drill Bit Size

For Use On

System of Measurement

Length Class

Decimal Size Equivalent

Material

Drill Bit Point Type

Shank Size

Overall Length

Finish

Aluminum Titanium Nitride (AlTiN) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Uncoated

Maximum Drilling Depth

Point Angle

Shank Type

Flute Direction

Flute Type

Sold As

Bit Style

Number of Flutes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

REACH

Screw Size

Specifications Met

Number of Pieces

Drill Bit Sizes Included

1 each of sizes 19/64" and 31/64"

1.0 mm and 1.5 mm

1.0-13.0 mm (increments of 0.5 mm)

1.0-2.45 mm (increments of 0.05 mm)

1.0-6.0 mm (increments of 0.1 mm)

1.0-6.0 mm (increments of 0.5 mm)

1.0-7.0 mm (increments of 0.5 mm)

1/16"-1/2" (increments of 1/32")

1/16"-1/2" (increments of 1/64")

1/16"-1/4" (increments of 1/32")

1/16"-1/4" (increments of 1/64")

1/16"-3/8" (increments of 1/16")

1/16"-3/8" (increments of 1/64")

1/2"

1/2"-1" (increments of 1/64")

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5,695 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

Carbide-Tipped Drill Bits

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

333 products

Carbide Drill Bits

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

494 products

Chip-Clearing High-Speed Steel Drill Bits

Prevent clogs and dissipate heat when drilling most metals

476 products

Chip-Clearing Carbide Drill Bits

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

80 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

Short-Flute High-Speed Steel Drill Bits

The rigidity of short-length bits without sacrificing reach

180 products

Short-Flute Carbide-Tipped Drill Bits

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

89 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

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 Carbide Drill Bits

More cutting edges for a consistent finish

96 products

Carbide-Insert Drill Bits

Once the cutting edges wear down, just change the inserts

69 products

High-Speed Steel Drill Bits for Sheet Metal

Make shallow cuts without snagging and deforming thin metal and tubing

17 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

Carbide-Tipped Drill Bits for Hardened Steel

Straight flutes withstand the heavy pressure needed to penetrate hardened steel

42 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

Hole-Starting Carbide Drill Bits

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

72 products

Expanded-Shank Carbide Drill Bits

Make small holes using standard-size tools

254 products

Spot-Weld-Removal High-Speed Steel Drill Bits

Separate metal panels without drilling all the way through them

7 products

Reduced-Shank High-Speed Steel Drill Bits

Make large holes using standard-size tools

242 products

Reduced-Shank Cobalt Steel Drill Bits

More wear resistant than high-speed steel, bits cut large holes with standard-size tools

14 products

Reduced-Shank Carbide-Tipped Drill Bits

Our hardest reduced-shank bits make large holes with standard-size tools

20 products

Coolant-Fed Carbide-Tipped Drill Bits

Coolant flows through the bit to reduce heat and evacuate chips

50 products

Coolant-Fed Carbide Drill Bits

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

50 products

Left-Hand High-Speed Steel Drill Bits

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

148 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 Masonry and Concrete

Crush tough materials to make holes in masonry

62 products

Rebar-Cutting Carbide-Tipped Drill Bits

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

17 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

Tapping Screw Installation Drill Bits for Masonry and Concrete

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

8 products

Carbide-Tipped Drill Bits for Stone

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

6 products

Carbide-Tipped Smooth-Finish Drill Bits for Wood

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

18 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 Drill Bits for Wire Installation

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

8 products

Carbide-Tipped Drill Bits for Wire Installation

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

6 products

High-Speed Steel Drill Bits for Wood Screws

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

26 products

Drill Bits with Countersunk-Hole Guide

Center holes perfectly before installing hinges and other hardware

4 products

High-Speed Steel Drill Bits for Plastic

Penetrate gradually to prevent cracking and chipping

116 products

Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

Drill abrasive materials cleanly

170 products

Carbide-Tipped Drill Bits for Glass and Ceramic

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

10 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

Carbide-Tipped Drill Bit Sets

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

2 products

Carbide Drill Bit Sets

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

6 products

Chip-Clearing High-Speed Steel Drill Bit Sets

Prevent clogs and dissipate heat when drilling most metals

3 products

Reduced-Shank High-Speed Steel Drill Bit Sets

Make large holes using standard-size tools

11 products

Expanded-Shank Carbide Drill Bit Sets

Make small holes using standard-size tools

3 products

Left-Hand High-Speed Steel Drill Bit Sets

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

6 products

Carbide-Tipped Drill Bit Sets for Masonry and Concrete

Crush tough materials to make holes in masonry

4 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

High-Speed Steel Drill Bit Sets for Plastic

Penetrate gradually to prevent cracking and chipping

1 product

Other Products

Router Bits

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

4 products

Reamer Drill Bits

Drill and finish holes in one pass

48 products

Drill Bit Inserts

Pair with compatible drill bit bodies to precisely drill multiple holes

36 products

Counterbore Drill Bits

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

23 products

Countersink Drill Bits

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

17 products

Friction Drill Bits

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

11 products