Metalworking Drill Bits | McMaster-Carr

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Drill Bit Size

System of Measurement

For Use On

Length Class

Decimal Size Equivalent

Material

Drill Bit Point Type

Finish

Aluminum Titanium Nitride (AlTiN) Coated

Black Oxide

Carbide Tipped

Gold Oxide

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

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Overall Length

Maximum Drilling Depth

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Flute Type

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Bit Style

Number of Flutes

REACH

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Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Diameter

Specifications Met

Screw Size

Number of Pieces

7,257 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

2,136 products

Cobalt Steel Drill Bits

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

1,014 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 Cobalt Steel Drill Bits

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

244 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

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

Aggressively cut difficult-to-machine metals without clogging

29 products

Short-Flute High-Speed Steel Drill Bits

The rigidity of short-length bits without sacrificing reach

180 products

Short-Flute Cobalt Steel Drill Bits

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

159 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

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 Cobalt Steel Drill Bits

Create an accurate starting place for a precise final hole

26 products

Hole-Starting Carbide Drill Bits

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

72 products

Quick-Change Hex High-Speed Steel Drill Bits

Save time when you need to change bits frequently

28 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

82 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

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

Nonsparking Drill Bits

Drill safely in flammable environments

4 products

High-Speed Steel Step Drill Bits

Simplify jobs by drilling multiple hole sizes using a single bit

30 products

Cobalt Steel Step Drill Bits

One bit drills multiple hole sizes and lasts twice as long as high-speed steel

6 products

Multidiameter High-Speed Steel Step Drill Bits

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

5 products

Hole-Enlarging Reduced-Shank Drill Bits

An alternative to reamers for enlarging an existing drilled hole

6 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

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

Short-Flute Cobalt Steel Drill Bit Sets

The rigidity of short-length bits without sacrificing reach

1 product

Reduced-Shank High-Speed Steel Drill Bit Sets

Make large holes using standard-size tools

11 products

Cobalt Steel Reduced-Round Shank Drill Bit Sets

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

1 product

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

Quick-Change Hex High-Speed Steel Drill Bit Sets

Save time when you need to change bits frequently

3 products

Reduced-Shank Hole-Enlarging Drill Bit Sets

An alternative to reamers for enlarging an existing drilled hole

1 product

Step Drill High-Speed Steel Bit Sets

Simplify jobs by drilling multiple hole sizes using a single bit

3 products

Other 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

Hollow-Core Cutters

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

206 products

Drill Stops

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

145 products

Router Bits

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

4 products

Hollow-Core Cutter Arbor Adapters

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

3 products