System of Measurement System of Measurement |
---|
|
Size Size |
---|

Decimal Size Equivalent Decimal Size Equivalent |
---|
For Use On For Use On |
---|
Point Style Point Style |
---|
![]() |
Split |
![]() |
Standard |
![]() |
Four Facet |
![]() |
Brad |
![]() |
Notched |
![]() |
Serrated |
![]() |
Carbide Insert |
Length Class Length Class |
---|
![]() |
Jobbers' Length |
![]() |
Short Length |
![]() |
Extended Length |
![]() |
Maintenance Length |
Shank Type Shank Type |
---|
![]() | Round |
![]() | SDS Plus |
![]() | Morse Taper |
Material Material |
---|
|
Finish Finish |
---|
|
Maximum Drilling Depth Maximum Drilling Depth | Show |
---|
|
Maximum Drilling Depth Maximum Drilling Depth | Hide |
---|
Flute Direction Flute Direction |
---|
![]() |
Right Hand |
![]() |
Left Hand |
Shank Size Shank Size |
---|
Bit Style Bit Style |
---|
![]() | Spiral Flute |
![]() | Straight Flute |
![]() | Open Spiral Flute |
Individual/Set Individual/Set |
---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
---|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
---|
|
For Drilling Type For Drilling Type |
---|
|
Morse Taper Number Morse Taper Number |
---|
|
Drill Bit Decimal Size Equivalents
More
About Drill Bits
More
About Masonry Drill Bits
More
Drill Bits






These jobbers'-length bits have the rigidity and length required for most applications.
Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and oxide-coated drill bits.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Letter | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
L | 0.29" | 4 1/4" | 2.5" | Round | 0.29" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
L | 0.29" | 4 1/4" | 2.5" | Round | 0.29" | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated High-Speed Steel | ||||||||||
L | 0.29" | 4 1/4" | 2.5" | Round | 0.29" | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Uncoated High-Speed Steel | ||||||||||
L | 0.29" | 4 1/4" | 2.5" | Round | 0.29" | Standard | __ | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
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.
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
1" | 1" | 6" | 2.5" | Round | 1" | Standard | ASME B94.11M | Steel, Iron, Stainless Steel | 00000000 | 000000 |
Extended-Length Drill Bits


Access hard-to-reach spots and drill deep holes.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and black-oxide drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
7/64" | 0.1094" | 4 5/8" | 2.5" | Round | 7/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Uncoated High-Speed Steel | |||||||||
7/64" | 0.1094" | 4 5/8" | 2.5" | Round | 7/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000 |
Wire Gauge | |||||||||
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
36 ga | 0.1065" | 4 5/8" | 2.5" | Round | 0.1065" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Short-Flute Extended-Length Drill Bits

The short flutes on these bits provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Max. Drilling Depth | Type | Size | Point Style | Specifications Met | For Use On | Each | |
6" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
17/64" | 0.2656" | 2.5" | Round | 17/64" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 000000 |
9/32" | 0.2813" | 2.5" | Round | 9/32" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
12" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
17/64" | 0.2656" | 2.5" | Round | 17/64" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
9/32" | 0.2813" | 2.5" | Round | 9/32" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Maintenance-Length Drill Bits

Also known as mechanics’ bits, these are shorter and more rigid than jobbers' bits but longer than short-length bits. A split point keeps the bit centered without a pilot hole.
Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.
For technical drawings and 3-D models, click on a part number.
Drill Bits for Precise Holes

Specially-designed flutes keep these bits centered as they drill, resulting in straighter, rounder holes with tighter tolerances. They are titanium nitride (TiN) coated for wear and temperature resistance. Also known as double-margin drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Depth | Type | Size | Point Style | For Use On | Each | |
Inch—Jobbers' Length | |||||||||
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
7/32" | 0.2188" | 3 3/4" | 2.5" | Round | 7/32" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Cobalt Steel Drill Bits


These jobbers'-length bits have the rigidity and length required for most applications. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
17/64" | 0.2656" | 4 1/8" | 2.5" | Round | 17/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
9/32" | 0.2813" | 4 1/4" | 2.5" | Round | 9/32" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
7/32" | 0.2188" | 3 3/4" | 2.5" | Round | 7/32" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
Wire Gauge | ||||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
6 ga | 0.204" | 3 3/4" | 2.5" | Round | 0.204" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
5 ga | 0.2055" | 3 3/4" | 2.5" | Round | 0.2055" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
4 ga | 0.209" | 3 3/4" | 2.5" | Round | 0.209" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
3 ga | 0.213" | 3 3/4" | 2.5" | Round | 0.213" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
Letter | ||||||||||
Uncoated Cobalt Steel | ||||||||||
L | 0.29" | 4 1/4" | 2.5" | Round | 0.29" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
Extended-Length Cobalt Steel Drill Bits

Access hard-to-reach spots and drill deep holes. With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. The split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Cobalt Steel | |||||||||
1/8" | 0.125" | 5 1/8" | 2.5" | Round | 1/8" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
Wire Gauge | |||||||||
Uncoated Cobalt Steel | |||||||||
35 ga | 0.11" | 5 1/8" | 2.5" | Round | 0.11" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
34 ga | 0.111" | 5 1/8" | 2.5" | Round | 0.111" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
33 ga | 0.113" | 5 1/8" | 2.5" | Round | 0.113" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
32 ga | 0.116" | 5 1/8" | 2.5" | Round | 0.116" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
31 ga | 0.12" | 5 1/8" | 2.5" | Round | 0.12" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
Carbide Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. The four-facet point keeps the bit centered without a pilot hole. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Letter | |||||||||
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
Q | 0.332" | 4" | 2.5" | Round | 0.332" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000000 | 000000 |
R | 0.339" | 4" | 2.5" | Round | 0.339" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
S | 0.348" | 4" | 2.5" | Round | 0.348" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Short-Flute Extended-Length Carbide-Tipped Drill Bits

The short flutes provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots. More wear resistant than cobalt steel and high-speed steel, these 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. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | 6" Overall Lg. | |||||||
---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Type | Size | Point Style | For Use On | Max. Drilling Dp. | Each | |
Inch | ||||||||
Uncoated Carbide-Tipped Steel | ||||||||
7/32" | 0.2188" | Round | 7/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 0000000 | 000000 |
Carbide-Tipped Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they 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.
Drill bits with a split point keep centered without a pilot hole.
Drill bits with 135° point angle produce smaller chips than 118° point to prevent clogging.
For technical drawings and 3-D models, click on a part number.
Shank | Split Point | ||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Letter | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
F | 0.257" | 4 1/4" | Round | 0.257" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 000000 |
G | 0.261" | 4 1/4" | Round | 0.261" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 00000 |
H | 0.266" | 4 1/4" | Round | 0.266" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 00000 |
I | 0.272" | 4 1/4" | Round | 0.272" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 00000 |
J | 0.277" | 4 1/4" | Round | 0.277" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 00000 |
K | 0.281" | 4 1/4" | Round | 0.281" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 00000 |
L | 0.29" | 4 1/2" | Round | 0.29" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 135° | 000000000 | 00000 |
High-Speed Steel Morse Taper-Shank Drill Bits

Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
1/4" | 0.25" | 1 | 0.475" | 6 1/8" | 2.5" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 000000 |
SDS-Plus-Shank Masonry Drill Bits for Rotary Hammers


The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. This type of bit drills faster and penetrates material with less pressure than rotary-only bits. Also called percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Specifications Met | For Use On | Each | |
Inch—Standard Point | ||||||||
---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | ||||||||
7/32" | 0.2188" | 4 3/4" | 2.5" | SDS Plus | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
Round- and Hex-Shank Masonry Drill Bits for Hammer Drills

Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. These bits drill faster and penetrate materials with less pressure than rotary-only bits. Also known as percussion or impact bits.
Serrated-point drill bits deliver faster, cooler cutting as well as longer life than standard-point masonry drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Specifications Met | For Use On | Each | |
Inch—Serrated Point | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
5/16" | 0.3125" | 4 1/4" | 2.5" | Round | 1/4" | ANSI B212.15 | Masonry, Concrete | 0000000 | 000000 |
Round- and Hex-Shank Masonry Drill Bits for Rotary-Only Drilling

Instead of using a hammering action to break up masonry material, these bits drill with rotary action only, requiring more pressure to grind up material. Use with handheld power drills, drill presses, and in hammer drills set to rotary-only mode. Do not use in hammering applications.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Carbide-Tipped Steel | ||||||||||
1/4" | 0.25" | 4" | 2 1/2" | Round | 13/64" | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
9/32" | 0.2813" | 4" | 2 1/2" | Round | 13/64" | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 0000 |
5/16" | 0.3125" | 4" | 2 1/2" | Round | 1/4" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 0000 |
3/8" | 0.375" | 4" | 2 1/2" | Round | 1/4" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 0000 |
Chip-Clearing Round-Shank Masonry Drill Bits for Rotary-Only Drilling

A more controlled chip removal reduces heat buildup, making these bits good for use on brittle material such as block and brick. Instead of using a hammering action to break up masonry material, they drill with rotary action only, requiring more pressure to grind up material. Use with handheld power drills, drill presses, and in hammer drills set to rotary-only mode. Do not use in hammering applications.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Carbide-Tipped Steel | ||||||||||
1/4" | 0.25" | 4" | 2.5" | Round | 13/64" | Standard | ANSI B212.15 | Masonry | 0000000 | 00000 |
9/32" | 0.2813" | 4" | 2.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
5/16" | 0.3125" | 4" | 2.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
3/8" | 0.375" | 4" | 2.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
Round-Shank Masonry Drill Bits for Tapping Screw Installation

Each bit is precisely sized to match the tolerances necessary to achieve maximum holding strength from tapping screws. Use with handheld power drills, drill presses, and hammer drills. The shank has a tang which allows it to fit into a drill press with a tapered spindle.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Features | For Use On | Each | |
Inch | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
3/16" | 5/32" | 0.1563" | 3 1/2" | 2 1/2" | Round | 5/32" | Standard | Flat on Shank | Masonry, Concrete | 000000000 | 00000 |
1/4" | 3/16" | 0.1875" | 3 1/2" | 2 1/2" | Round | 5/32" | Standard | Flat on Shank | Masonry, Concrete | 000000000 | 0000 |
Drill Bits for Precise Holes in Wood


Three sharp points allow these bits to drill accurate straight and overlapping holes, even across the grain. The center guide point prevents the bit from wandering. Also known as brad-point bits.
High-speed steel drill bits are stronger and more wear resistant than steel drill bits.
For technical drawings and 3-D models, click on a part number.
Drill Bits for Wood Screws

These bits are cut to match a wood screw’s thread and diameter, resulting in a perfect fit for a screw. They produce clean edges when cutting soft and hard wood.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Screw Size | Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Each | |
Inch | |||||||||
Uncoated High-Speed Steel | |||||||||
No. 12 | 7/32" | 0.2188" | 3 3/4" | 2 1/2" | Round | 7/32" | Standard | 0000000 | 00000 |
Carbide-Tipped Drill Bits for Hardened Steel

The straight flutes and notched point withstand the heavy pressure necessary to penetrate hard steel. These carbide-tipped bits maintain their sharp edges when drilling abrasive material. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. They are jobbers' length and have the rigidity and length required for most hand-held drilling and machine tool applications.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Max. Hardness | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
5/8" | 0.625" | 7" | 2.5" | Round | 5/8" | Notched | Rockwell C60 | 0000000 | 000000 |
Drill Bits for Plastic

The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic. These bits are jobbers' length and have the rigidity and length required for most applications.
For technical drawings and 3-D models, click on a part number.
High-Speed Steel Left-Hand Drill Bits

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. These bits are jobbers' length and have the rigidity and length required for most applications.
Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-and-Gold-Oxide High-Speed Steel | |||||||||
15/64" | 0.2344" | 3 7/8" | 2.5" | Round | 15/64" | Split | Steel, Iron, Stainless Steel | 00000000 | 000000 |
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. Each drill bit requires two inserts—one on the inner cutting edge and one on the outer cutting edge. Bits can be used in CNC machines with coolant-through technology; holes in the bit allow coolant to be channeled through the tool for more efficient chip evacuation.
For technical drawings and 3-D models, click on a part number.

Drill Bits | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Insert Inscribed Circle Dia. (IC) | Shank | Replacement Screws | ||||||||||
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Inner | Outer | For Use On | Type | Size | Each | Each | ||
Steel | ||||||||||||
1/2" | 0.5" | 5" | 2 1/2" | 0.189" | 0.189" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Round | 3/4" | 0000000 | 0000000 | 0000000 | 00000 |


For Drill Bit Size | Inscribed Circle Dia. (IC) | Thick. | Hole Dia. | Tip Radius | For Use On | Features | Each | |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | ||||||||
---|---|---|---|---|---|---|---|---|
1/2" | 0.189" | 3/32" | 1/16" | 1/64" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Chip Breakers | 0000000 | 000000 |


For Drill Bit Size | Inscribed Circle Dia. (IC) | Thick. | Hole Dia. | Tip Radius | For Use On | Features | Each | |
Titanium-Nitride (TiN) Coated Carbide | ||||||||
---|---|---|---|---|---|---|---|---|
1/2" | 0.189" | 3/32" | 1/16" | 1/64" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Plastic | Chip Breakers | 0000000 | 000000 |