3/8" Shank Size Drill Bits

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Aluminum Titanium Nitride (AlTiN) Coated

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EAR99

DFARS Specialty Metals

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No. 12

No. 14

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Number of Sizes

206 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

22 products

High-Speed Steel Step Drill Bits

Simplify jobs by drilling multiple hole sizes using a single bit

14 products

Cobalt Steel Drill Bits

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

11 products

Multidiameter High-Speed Steel Step Drill Bits

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

4 products

Carbide-Tipped Drill Bits for Masonry and Concrete

Crush tough materials to make holes in masonry

19 products

Cobalt Steel Step Drill Bits

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

4 products

Carbide Drill Bits

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

6 products

Reduced-Shank High-Speed Steel Drill Bits

Make large holes using standard-size tools

8 products

Carbide-Tipped Drill Bits

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

5 products

Chip-Clearing Drill Bits for Wood

Prevent clogs that wear the bit and slow down drilling

5 products

Carbide-Tipped Smooth-Finish Drill Bits for Wood

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

14 products

High-Speed Steel Precise-Cut Drill Bits for Wood

Point stays sharp longer to cut accurate straight and overlapping holes

3 products

Chip-Clearing High-Speed Steel Drill Bits

Prevent clogs and dissipate heat when drilling most metals

7 products

Steel Precise-Cut Drill Bits for Wood

Cut accurate straight and overlapping holes, even across the grain

3 products

Short-Flute High-Speed Steel Drill Bits

The rigidity of short-length bits without sacrificing reach

2 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

3 products

Hole-Starting Carbide Drill Bits

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

10 products

Precise-Cut High-Speed Steel Drill Bits

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

1 product

Left-Hand High-Speed Steel Drill Bits

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

2 products

Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

Drill abrasive materials cleanly

3 products

Carbide-Tipped Drill Bits for Hardened Steel

Straight flutes withstand the heavy pressure needed to penetrate hardened steel

1 product

Carbide Drill Bits for Hardened Steel

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

2 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

8 products

Coolant-Fed Carbide Drill Bits

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

2 products

Smooth-Finish Carbide Drill Bits

More cutting edges for a consistent finish

1 product

Nonsparking Drill Bits

Drill safely in flammable environments

1 product

Short-Flute Carbide-Tipped Drill Bits

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

2 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

1 product

Hole-Starting Cobalt Steel Drill Bits

Create an accurate starting place for a precise final hole

4 products

Short-Flute Cobalt Steel Drill Bits

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

1 product

High-Speed Steel Drill Bits for Wire Installation

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

2 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

2 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

1 product

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

1 product

Chip-Clearing Carbide Drill Bits

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

2 products

Carbide-Tipped Drill Bits for Wire Installation

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

2 products

Rebar-Cutting Carbide-Tipped Drill Bits

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

3 products

Drill Bits with Countersunk-Hole Guide

Center holes perfectly before installing hinges and other hardware

4 products

Sold as Sets

Reduced-Shank High-Speed Steel Drill Bit Sets

Make large holes using standard-size tools

1 product

Other Products

Hole Saw Arbors

Secure a hole saw to a drill or drill press

4 products

Drill Bit Extensions

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

10 products