System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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For Use On For Use On |
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Length Class Length Class |
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| Extended Length |
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| Taper Shank Length |
Material Material |
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Finish Finish |
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Shank Type Shank Type |
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 | Round |
 | SDS Plus |
 | Morse Taper |
Point Style Point Style |
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| Split |
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| Standard |
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| Carbide Insert |
Bit Style Bit Style |
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| Spiral Flute | Straight Flute |
Individual/Set Individual/Set |
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Overall Length Overall Length | Show |
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Overall Length Overall Length | Hide |
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Maximum Drilling Depth Maximum Drilling Depth |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Flute Direction Flute Direction |
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| Right Hand |
Morse Taper Number Morse Taper Number |
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Morse Taper Diameter Morse Taper Diameter |
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For Drilling Type For Drilling Type |
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For Screw Size For Screw Size |
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Specifications Met Specifications Met |
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About Drill Bits
More
Drill Bit Decimal Size Equivalents
More
About Masonry Drill Bits
More
Extended-Length Drill Bits
Black-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 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 | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 15/64" | 0.2344" | 6 1/8" | 3.39" | Round | 15/64" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
| 1/4" | 0.25" | 6 1/8" | 3.37" | Round | 1/4" | Standard | Steel, Iron, Stainless Steel | 000000000 | 0000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
| 15/64" | 0.2344" | 6 1/8" | 3.28" | Round | 15/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
| 1/4" | 0.25" | 6 1/8" | 3.25" | Round | 1/4" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Wire Gauge | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 2 ga | 0.221" | 6 1/8" | 3.41" | Round | 0.221" | Standard | Steel, Iron, Stainless Steel | 00000000 | 00000 |
| 1 ga | 0.228" | 6 1/8" | 3.4" | Round | 0.228" | Standard | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Letter | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| A | 0.234" | 6 1/8" | 3.39" | Round | 0.234" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| B | 0.238" | 6 1/8" | 3.39" | Round | 0.238" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| C | 0.242" | 6 1/8" | 3.38" | Round | 0.242" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| D | 0.246" | 6 1/8" | 3.38" | Round | 0.246" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| E | 0.25" | 6 1/8" | 3.37" | Round | 1/4" | Standard | Steel, Iron, Stainless Steel | 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 | |||||||||
| 15/64" | 0.2344" | 6 1/8" | 3.28" | Round | 15/64" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
| 1/4" | 0.25" | 6 1/8" | 3.25" | Round | 1/4" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
Wire Gauge | |||||||||
Uncoated Cobalt Steel | |||||||||
| 2 ga | 0.221" | 6 1/8" | 3.3" | Round | 0.221" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
| 1 ga | 0.228" | 6 1/8" | 3.3" | Round | 0.228" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
Extended-Length Carbide-Tipped Drill Bits
Access hard-to-reach spots and drill deep holes. 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.
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 Carbide-Tipped Steel | |||||||||
| 15/64" | 0.2344" | 6 1/8" | 3.16" | Round | 15/64" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
| 1/4" | 0.25" | 6 1/8" | 3.13" | Round | 1/4" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 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 |
Cobalt Steel Morse Taper-Shank Drill Bits
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. Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes. A split point keeps the bit centered without a pilot hole.
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 | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 1/4" | 0.25" | 1 | 0.475" | 6 1/8" | 2.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Masonry Drill Bits for Anchor Installation
A built-in stop ensures repeatable drilling depths for installing drop-in anchors. 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.
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Inch | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | |||||||||
| 5/8" | 0.625" | 6 1/8" | 2 1/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 000000 |
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. 14 | 1/4" | 0.25" | 6 1/8" | 3 3/4" | Round | 1/4" | Standard | 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 | ||||||||||||
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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" | 1" | 6 1/8" | 3" | 0.331" | 0.350" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Round | 1" | 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 1/8" | 0.331" | 1/8" | 1/8" | 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", 1 1/8" | 0.350" | 1/8" | 1/8" | 1/32" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Plastic | Chip Breakers | 0000000 | 000000 |