Black Oxide Drill Bits | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Specifications Met Specifications Met

NAS

DIN

ASME

	Number of Pieces Number of Pieces

5
8
13
15
16
18
19
20

21
25
26
29
33
41
50
60

72
80
96
114
115
118
249

	Container Type Container Type

	Morse Taper Number Morse Taper Number

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1,801 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.

Extended-Length Drill Bits

Short-Flute Extended-Length Drill Bits

The short flutes provide increased rigidity for drilling straighter holes than standard extended-length drill bits.

Chip-Clearing Drill Bits

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

Short-Flute Cobalt Steel Drill Bits

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

1/2" Diameter Reduced-Shank Drill Bits

Extended-Length 1/2" Diameter
Reduced-Shank Drill Bits

Access hard-to-reach spots and drill deep holes.

High-Speed Steel 3/4" Diameter
Reduced-Shank Drill Bits

Use these bits for general purpose drilling in most material.

1/4" Diameter Reduced-Shank Drill Bits

3/8" Diameter Reduced-Shank Drill Bits

High-Speed Steel Morse Taper-Shank Drill Bits

Use these bits for general purpose drilling in most material.

Hex-Shank Drill Bits

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

Threaded-Shank Drill Bits

All have a 1/4"-28 threaded shank which installs directly into the threaded spindle on a compatible drill.

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.

Drive Sleeves for Hex-Shank Masonry
Drill Bits for Tapping Screw Installation

Drive a tapping screw without removing the drill bit from your impact driver. One end holds an insert or nutdriver bit, while the other end engages with the hex-collar on the drill bit.

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.

Chip-Clearing Drill Bits for Wood

An open spiral-flute design clears chips quickly, so these bits can bore smooth, deep holes through construction lumber, railroad ties, and utility poles. Also known as pole or ship auger bits.

Fast-Cutting Drill Bits for Wood

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

Reversible Drill Bits for Sheet Metal

When one end becomes worn, reverse the bit to use the other end.

Drill Bits for Sheet Metal

These bits have short flutes and a sturdy construction which prevent snagging that deforms sheet metal and thin-wall tubing.

High-Speed Steel Left-Hand Drill Bits

Use for drilling in most metal.

Multidiameter Drill Bits

High-Speed Steel Multidiameter Drill Bits

Use for drilling in most metal.

Any-Diameter Drill Bits

Place a washer with an ID of the desired hole size over the bit and it acts as a stop to prevent the bit from drilling a larger hole.

Drill Bits for Wire Installation

Unlike traditional wire-installing drill bits, you do not need to strip the end of the wire when using one of these bits. After drilling, insert the wire into the bit's hollow shaft and pull through the hole.

Drill Bit Sets

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

Short-Length Drill Bit Sets

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

Chip-Clearing Drill Bit Sets

Designed to lift chips out of the hole, these bits reduce clogging and improve coolant flow.

Short-Flute Cobalt Steel Drill Bit Sets

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

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

Use these bits for general purpose drilling in most material.

1/4" Diameter Reduced-Shank Drill Bit Sets

Drill Bit Sets 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 Bit Sets for Wood

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

Countersinks

Starter-Hole-Eliminating Drill-Point
Countersinks for Lathe Centers

No need to create a starter hole—the drill point is incorporated into the countersink flutes.

High-Speed Steel Starter-Hole-Eliminating
Drill-Point Countersinks for Screws

To remove the need for a starter hole, the drill point is incorporated into the countersink flutes.

High-Speed Steel Starter-Hole-Eliminating
Drill-Point Countersinks for Rivets

For general purpose use.

High-Speed Steel Countersinks for Screws

High-Speed Steel Countersinks for Lathe Centers

Drill-Bit Counterbores with Drill Bit

These counterbores are attached to a drill bit for drilling and counterboring in a single step.

Tap and Drill Bit Sets

Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.

Drill Bit Decimal Size Equivalents