System of Measurement System of Measurement |
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Length Class Length Class |
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| Jobbers' Length |
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| Reduced Shank Length |
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| Taper Shank Length |
Material Material |
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For Use On For Use On |
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Shank Type Shank Type |
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| Round | Reduced Round |
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| Morse Taper |
Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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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 |
Morse Taper Number Morse Taper Number |
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Flute Direction Flute Direction |
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| Right Hand |
Finish Finish |
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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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Individual/Set Individual/Set |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Morse Taper Diameter Morse Taper Diameter |
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Specifications Met Specifications Met |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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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 | ||||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
| 31/64" | 0.4844" | 5 7/8" | 4.38" | Round | 31/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 31/64" | 0.4844" | 5 7/8" | 4.38" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 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 | ||||||||||
| 1/2" | 0.5" | 2 | 0.7" | 8 1/4" | 4.38" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 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.
Shank | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Each | |
Inch | ||||||||
Uncoated High-Speed Steel | ||||||||
| 31/64" | 0.4844" | 5 7/8" | 4.38" | Round | 31/64" | 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | ||||||||||||
| 7/8" | 0.875" | 7 3/8" | 4.38" | 0.268" | 0.295" | 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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 7/8" | 0.268" | 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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 7/8" | 0.295" | 1/8" | 1/8" | 1/32" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Plastic | Chip Breakers | 0000000 | 000000 |