System of Measurement System of Measurement |
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For Use On For Use On |
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Length Class Length Class |
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| Jobbers' Length |
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| Short Length |
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Material Material |
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Finish Finish |
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Shank Type Shank Type |
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 | Round |
Bit Style Bit Style |
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 | Spiral Flute |
Individual/Set Individual/Set |
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Flute Direction Flute Direction |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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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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 | |
Wire Gauge | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 1 ga | 0.228" | 3 7/8" | 2.28" | Round | 0.228" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
| 1 ga | 0.228" | 3 7/8" | 2.28" | Round | 0.228" | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
Titanium-Aluminum-Nitride (TiAlN) Coated High-Speed Steel | ||||||||||
| 1 ga | 0.228" | 3 7/8" | 2.28" | Round | 0.228" | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 0000 |
Uncoated High-Speed Steel | ||||||||||
| 1 ga | 0.228" | 3 7/8" | 2.28" | Round | 0.228" | Standard | __ | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Short-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 | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 57/64" | 0.8906" | 5 5/8" | 2.28" | Round | 57/64" | Standard | Steel, Iron, Stainless Steel | 00000000 | 000000 |
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. | |||||||||
Wire Gauge | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1 ga | 0.228" | 2.28" | Round | 0.228" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
12" Overall Lg. | |||||||||
Wire Gauge | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1 ga | 0.228" | 2.28" | Round | 0.228" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Chip-Clearing Drill Bits
Black-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—Spiral Flute | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 21/64" | 0.3281" | 4 5/8" | 2.28" | Round | 21/64" | Split | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Wire Gauge—Spiral Flute | |||||||||
Uncoated High-Speed Steel | |||||||||
| 1 ga | 0.228" | 3 7/8" | 2.28" | Round | 0.228" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Cobalt Steel 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 | |
Wire Gauge | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 1 ga | 0.228" | 3 7/8" | 2.28" | Round | 0.228" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 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 | |||||||||
| 7/64" | 0.1094" | 4 5/8" | 2.28" | Round | 7/64" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
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 | |||||||||
| 3/16" | 0.1875" | 3 1/2" | 2.28" | Round | 3/16" | Split | Steel, Iron, Stainless Steel | 00000000 | 00000 |