Metal Case Drill Bits | McMaster-Carr

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	System of Measurement System of Measurement

	For Use On For Use On

	Number of Pieces Number of Pieces

6
7
8
9
11
13
15
18

19
20
21
25
26
29
35
36

41
60
80
114
115
118

	Material Material

	Finish Finish

Aluminum Titanium Nitride
(AlTiN) Coated

Black and Gold Oxide

Black Oxide

Gold Oxide

Titanium Aluminum Nitride
(TiAlN) Coated

Titanium Carbonitride (TiCN)
Coated

Titanium Nitride (TiN) Coated

Uncoated

	Shank Type Shank Type


Round	Reduced Round

Hex	Square

	Individual/Set Individual/Set

Set

	Container Type Container Type	Show

Metal Case

	Container Type Container Type	Hide

	Length Class Length Class

Jobbers' Length

Short Length

Reduced Shank Length

	Point Style Point Style

Split

Standard

Four Facet

	Component Component

Tap

Drill Bit

	Thread Size Thread Size

	Thread Type Thread Type

UNC

Metric

UNF

	Flute Direction Flute Direction

Right Hand

Left Hand

	Number of Flutes Number of Flutes

	2		3
	4

	Point Angle Point Angle

60°

118°

135°

	Flute Type Flute Type

	Straight
	Spiral Point

	Drill Bit Material Drill Bit Material

High-Speed Steel

Cobalt Steel

	Number of Drill Bits Number of Drill Bits

	Bit Style Bit Style

	Spiral Flute
	Parabolic Spiral Flute

	Chamfer Type Chamfer Type

Plug

Taper

Bottoming

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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

REACH Compliant

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119 Products

Drill Bit Decimal Size Equivalents

About Drill Bits

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.

Cobalt Steel Drill Bit Sets

Short-Flute Cobalt Steel Drill Bit Sets

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

Short-Length Cobalt Steel Drill Bit Sets

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

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.

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.

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

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.

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

3/8" 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.

Carbide Drill-Point Countersink Sets for Lathe Centers

Carbide is harder, stronger, and more wear resistant than cobalt steel and high-speed steel for better performance on hard and abrasive materials.

Carbide Drill-Point Countersink Sets with
Two Countersinking Ends for Screws

For excellent performance on hard and abrasive materials, carbide is harder, stronger, and more wear resistant than high-speed steel.

Hole-Enlarging Drill-Bit Sets

Enlarge existing holes without changing the depth.

Bit Assortments

Assortments contain bits with multiple drive styles.

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.

Chip-Clearing Tap and Drill Bit Sets for Through-Holes

Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes.