5" Drill Bits | McMaster-Carr

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	Specifications Met Specifications Met

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ANSI

	Body Diameter Body Diameter

	For Drill Bit Shank Type For Drill Bit Shank Type

	Tapered Round

	For Maximum Hardness For Maximum Hardness

Rockwell C60

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139 Products

Drill Bit Decimal Size Equivalents

About Drill Bits

Drill Bits

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

Short-Length Drill Bits

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.

Maintenance-Length Drill Bits

Also known as mechanics' bits, these are shorter and more rigid than jobbers’ bits but longer than short‐length bits.

Chip-Clearing Drill Bits

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

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.

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-Tipped Drill Bits

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

Short-Length Carbide-Tipped Drill Bits

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'-length drill bits.

1/4" Diameter Reduced-Shank Drill Bits

Cobalt Steel Hex-Shank Drill Bits

In addition to resisting heat and wear better than high-speed steel drill bits, these can also run up to 25% faster and have a longer tool life. Insert them into power screwdrivers, impact drivers, and other tools that accept hex shanks.

Changeable-Size SDS-Max-Shank Masonry
Core Drill Bits for Rotary Hammers

These bits allow you to easily switch to another size by changing only the bit body. They are hollow and cut with their outside edge for drilling holes larger than 1 1/2" in diameter.

Hex-Shank Masonry Drill Bits
for Tapping Screw Installation

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

Fast-Cutting Smooth-Finish Drill Bits for Wood

Multiple outlining teeth bore clean, flat-bottom holes without chipping or splintering your surface—even when cutting across the grain. Also known as multispur bits.

Drill Bits for Precise Holes in Wood

Three sharp points allow these bits to drill accurate straight and overlapping holes, even across the grain. Also known as brad-point bits.

Fast-Cutting Drill Bits for Wood

The screw point draws the bit in, quickly boring holes without applying pressure.

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.

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 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.

Left-Hand Drill Bits

High-Speed Steel Left-Hand Drill Bits

Use for drilling in most metal.

Cobalt Steel Left-Hand Drill Bits

With better heat and wear resistance than high-speed steel, cobalt steel bits can run up to 25% faster and have a longer tool life.

Replaceable Carbide-Insert Drill Bits

Use these bits to drill a large number of holes with high precision. When the cutting edges dull, replace the carbide inserts (sold separately) instead of the entire bit.

Magnetic Chip Catchers for Drilling Metal

Magnets on these catchers attach to metal surfaces and contain metal chips created during drilling.

Countersinks

High-Speed Steel Drill-Point
Countersinks for Lathe Centers

For general purpose use.

Cobalt Steel Drill-Point Countersinks with
Two Countersinking Ends for Lathe Centers

High-Speed Steel Drill-Point Countersinks
with Two Countersinking Ends for Screws

Use in general purpose applications.

Countersinking Drill Bits for Screws

Also known as step drill bits. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.

Countersinking Drill Bits for Taps

Also called subland drill bits. The 90° countersink angle guides the tap into the hole.

High-Speed Steel Countersinks for Screws

High-Speed Steel Countersinks for Lathe Centers

Long-Life Counterboring Drill Bits

Also known as subland drill bits, these last longer than standard counterboring drill bits because the diameter stays the same after sharpening.

Drill Bit Shank Adapters for Rotary Hammers

Adapt your rotary hammer to fit a variety of masonry drill bit shank types.

High-Speed Tool Steel

Hardened Undersized High-Speed M2 Tool Steel Rods

These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits.

Hardened Oversized High-Speed M2 Tool Steel Rods

Also known as reamer blanks, these rods are hardened for increased abrasion and impact resistance.

Hardened High-Speed M42 Tool Steel

Also known as cobalt steel, this M42 tool steel maintains its hardness in high-speed cutting applications that generate intense heat. Use it to make tools for cutting extremely hard materials.

Drill Bit Decimal Size Equivalents