McMaster-Carr

Specially-designed flutes keep these bits centered as they drill, resulting in straighter, rounder holes with tighter tolerances. Also known as double-margin drill bits.

Cobalt Steel Drill Bits

Short-Flute Cobalt Steel Drill Bits

The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes.

Chip-Clearing Cobalt Steel Drill Bits

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow.

Carbide Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications.

Quick-Change Carbide Drill Bits

Make fast bit changes—all of these bits have the same shank diameter, eliminating the need for different collets to hold each size.

Smooth-Finish Carbide Drill Bits

Three cutting edges instead of the typical two enable these bits to drill holes with a smoother finish than other bits.

Carbide Drill Bits with Coolant Holes

Holes in these bits allow coolant to be run through the tool for more efficient chip evacuation. Use them in CNC machines with coolant-through technology.

Chip-Clearing Carbide Drill Bits

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow.

Carbide Drill Bits for Precise Holes

Specially-designed flutes keep these bits centered as they drill, resulting in straighter, rounder holes with tighter tolerances. Also known as double-margin drill bits.

Carbide-Tipped Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications.

Nonsparking Drill Bits

Drill safely in flammable environments. Made of Factory Mutual (FM) approved beryllium copper, these bits won’t create sparks that could ignite if they made contact with combustible vapors or residues.

Hex-Shank Drill Bits

Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.

3/8" Diameter
Reduced-Shank Drill Bits

1/4" Diameter
Reduced-Shank Drill Bits

Drill Bits for Plastic

The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic.

Cobalt Steel Drill Bits for
Stainless Steel and Nickel

Cobalt steel bits are heat resistant and maintain their sharp edges when drilling hard material. They are for use in both hand-held drilling and machine-tool applications.

Drill Bits for Carbon Fiber,
Fiberglass, and Graphite

These jobbers'-length bits have the rigidity and length required for most applications.

Drill Bits for Aluminum,
Brass, and Bronze

Because softer metal, like aluminum, brass, and bronze, can clog a bit, the flutes on these bits lift chips out of the hole. Also known as slow-spiral drill bits.

Carbide-Tipped Drill
Bits for Hardened Steel

Carbide-tipped bits maintain their sharp edges when drilling hard material. They are for use in both hand-held drilling and machine-tool applications.

High-Speed Steel Left-Hand Drill Bits

Use for drilling in most metal.

Drill Bit Sets

These jobbers'-length bits have the rigidity and length required for most applications.

Chip-Clearing Drill Bit Sets

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow.

Short-Flute Cobalt Steel Drill Bit Sets

The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes.

Cobalt Steel Drill Bit Sets

Carbide Drill Bit Sets

For the highest accuracy and longest tool life, these solid-carbide bits are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits.

Quick-Change Carbide Drill Bit Sets

Make fast bit changes—each bit has the same shank diameter, eliminating the need for different collets to hold each size.

Carbide-Tipped Drill Bit Sets

More wear resistant than cobalt steel and high-speed steel, carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.

Hex-Shank Drill Bit Sets

Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.

High-Speed Steel 1/2" Diameter
Reduced-Shank Drill Bit Sets

Use these bits for general purpose drilling in most material.

3/8" Diameter
Reduced-Shank Drill Bit Sets

1/4" Diameter
Reduced-Shank Drill Bit Sets

Drill Bit Sets for Plastic

The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic.

Left-Hand Drill Bit Sets

Also known as reverse-flute bits, the flutes spiral in the opposite direction of other bits. Use in counterclockwise drilling applications such as removing broken screws.

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