Wire Gauge Drill Bits | McMaster-Carr

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Drill Bit Sizes Included

1.0-13.0 mm (increments of 0.5 mm)

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

2,215 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

569 products

Cobalt Steel Drill Bits

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

316 products

Carbide Drill Bits

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

170 products

Expanded-Shank Carbide Drill Bits

Make small holes using standard-size tools

145 products

Short-Flute High-Speed Steel Drill Bits

The rigidity of short-length bits without sacrificing reach

120 products

Chip-Clearing High-Speed Steel Drill Bits

Prevent clogs and dissipate heat when drilling most metals

226 products

Short-Flute Cobalt Steel Drill Bits

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

104 products

Carbide Drill Bits for Hardened Steel

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

116 products

Carbide-Tipped Drill Bits

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

72 products

Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

Drill abrasive materials cleanly

58 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

52 products

Left-Hand High-Speed Steel Drill Bits

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

60 products

Smooth-Finish Carbide Drill Bits

More cutting edges for a consistent finish

36 products

High-Speed Steel Drill Bits for Plastic

Penetrate gradually to prevent cracking and chipping

31 products

Short-Flute Carbide-Tipped Drill Bits

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

32 products

Chip-Clearing Carbide Drill Bits

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

60 products

High-Speed Steel Drill Bits for Sheet Metal

Make shallow cuts without snagging and deforming thin metal and tubing

4 products

Hole-Starting Carbide Drill Bits

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

3 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

18 products

Cobalt Steel Drill Bit Sets

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

5 products

Carbide Drill Bit Sets

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

1 product

Left-Hand High-Speed Steel Drill Bit Sets

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

1 product

Expanded-Shank Carbide Drill Bit Sets

Make small holes using standard-size tools

2 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

Drill Bit Size Gauges

Match your drill bit to one of the holes to confirm its size

2 products

Reamer Drill Bits

Drill and finish holes in one pass

8 products