System of Measurement System of Measurement |
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Drill Bit Size Drill Bit Size |
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Shank Type Shank Type |
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 | Round |
 | Reduced Round |
 | Quick-Change Hex |
For Use On For Use On |
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Point Style Point Style |
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| Split |
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| Standard |
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| Brad |
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| Serrated |
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| Carbide Insert |
Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Decimal Size Equivalent Decimal Size Equivalent |
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Material Material |
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Bit Style Bit Style |
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 | Spiral Flute |
 | Open Spiral Flute |
 | Flat Blade |
Length Class Length Class |
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| Jobbers' Length |
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| Extended Length |
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| Reduced Shank Length |
Finish Finish |
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Individual/Set Individual/Set |
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For Drilling Type For Drilling Type |
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Flute Direction Flute Direction |
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| Right Hand |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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About Masonry Drill Bits
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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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit 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 | |||||||||
| 1/2" | 0.5" | 6" | 4.5" | Round | 1/2" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
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 | Pkg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | Pkg. Qty. | Pkg. | ||
Inch | |||||||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||||||
| 1/2" | 0.5" | 6" | 4.5" | Round | 1/2" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 000000 | 6 | 000000000 | 0000000 |
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. | |||||||
|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Type | Size | Point Style | For Use On | Max. Drilling Dp. | Each | |
Inch | ||||||||
Uncoated Carbide-Tipped Steel | ||||||||
| 1/2" | 0.5" | Round | 1/2" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 4.5" | 0000000 | 000000 |
3/8" Diameter Reduced-Shank Drill Bits
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1/2" | 0.5" | 6" | 4.5" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 000000 |
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Specifications Met | For Use On | Each | |
Inch—Serrated Point | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 3/16" | 0.1875" | 6" | 4.5" | Round | 3/16" | 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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit 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" | 6" | 4 1/2" | Round | 13/64" | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 5/16" | 0.3125" | 6" | 4 1/2" | Round | 1/4" | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 0000 |
| 3/8" | 0.375" | 6" | 4 1/2" | Round | 1/4" | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 0000 |
| 7/16" | 0.4375" | 6" | 4 1/2" | Round | 1/4" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 0000 |
| 1/2" | 0.5" | 6" | 4 1/2" | Round | 1/4" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 0000 |
| 9/16" | 0.5625" | 6" | 4 1/2" | Round | 3/8" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 0000 |
| 5/8" | 0.625" | 6" | 4 1/2" | Round | 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 0000 |
| 3/4" | 0.75" | 6" | 4 1/2" | Round | 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 00000 |
| 7/8" | 0.875" | 6" | 4 1/2" | Round | 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 00000 |
| 1" | 1" | 6" | 4 1/2" | Round | 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 00000 |
| 1 1/8" | 1.125" | 6" | 4 1/2" | Round | 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 00000 |
| 1 1/4" | 1.25" | 6" | 4 1/2" | Round | 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 00000000 | 00000 |
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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit 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" | 6" | 4.5" | Round | 13/64" | Standard | ANSI B212.15 | Masonry | 0000000 | 00000 |
| 5/16" | 0.3125" | 6" | 4.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 3/8" | 0.375" | 6" | 4.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 7/16" | 0.4375" | 6" | 4.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 1/2" | 0.5" | 6" | 4.5" | Round | 1/4" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 1/2" | 0.5" | 6" | 4.5" | Round | 3/8" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 9/16" | 0.5625" | 6" | 4.5" | Round | 3/8" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 5/8" | 0.625" | 6" | 4.5" | Round | 3/8" | Standard | ANSI B212.15 | Masonry | 0000000 | 0000 |
| 11/16" | 0.6875" | 6" | 4.5" | Round | 1/2" | Standard | ANSI B212.15 | Masonry | 0000000 | 00000 |
| 3/4" | 0.75" | 6" | 4.5" | Round | 3/8" | Standard | ANSI B212.15 | Masonry | 0000000 | 00000 |
| 7/8" | 0.875" | 6" | 4.5" | Round | 1/2" | Standard | ANSI B212.15 | Masonry | 0000000 | 00000 |
| 1" | 1" | 6" | 4.5" | Round | 1/2" | Standard | ANSI B212.15 | Masonry | 0000000 | 00000 |
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 | Drill Bit 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" | 5 1/2" | 4 1/2" | Round | 5/32" | Standard | Flat on Shank | Masonry, Concrete | 000000000 | 00000 |
| 1/4" | 3/16" | 0.1875" | 5 1/2" | 4 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.
Shank | ||||||||
|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Each | |
Inch | ||||||||
Uncoated High-Speed Steel | ||||||||
| 1/2" | 0.5" | 6" | 4 1/2" | Round | 1/2" | Brad | 0000000 | 000000 |
Flat-Blade Drill Bits for Wood
Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.
For technical drawings and 3-D models, click on a part number.
6" Overall Lg. | |||||||
|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Shank Size | Point Style | Shank Type | Max. Drilling Dp. | Each | |
Inch | |||||||
Uncoated Steel | |||||||
| 1/4" | 0.25" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 00000 |
| 5/16" | 0.3125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 3/8" | 0.375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 7/16" | 0.4375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1/2" | 0.5" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 9/16" | 0.5625" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 5/8" | 0.625" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 11/16" | 0.6875" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 3/4" | 0.75" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 13/16" | 0.8125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 7/8" | 0.875" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 15/16" | 0.9375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1" | 1" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 1/8" | 1.125" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 1/4" | 1.25" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 3/8" | 1.375" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
| 1 1/2" | 1.5" | 1/4" | Standard | Quick-Change Hex | 4 1/2" | 0000000 | 0000 |
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 | ||||||||||
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Inner | Outer | For Use On | Type | Size | Each | Each | ||
Steel | ||||||||||||
| 1 1/2" | 1.5" | 8 1/2" | 4 1/2" | 0.486" | 0.498" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Round | 1 1/2" | 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 1/2", 1 5/8" | 0.486" | 5/32" | 3/16" | 1/32" | 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 1/2", 1 5/8" | 0.498" | 5/32" | 3/16" | 3/64" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Plastic | Chip Breakers | 0000000 | 000000 |