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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| Extended Length |
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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Overall Length Overall Length | Show |
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Overall Length Overall Length | Hide |
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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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Application Application |
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Flute Length Flute Length |
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Number of Flutes Number of Flutes |
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 | 2 |
Flute Style Flute Style |
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 | Spiral |
About Drill Bits
More
Drill Bit Decimal Size Equivalents
More
About Reamers
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 | |||||||||
| 31/64" | 0.4844" | 7 3/4" | 4.02" | Round | 31/64" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
| 1/2" | 0.5" | 7 3/4" | 4" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
| 1/2" | 0.5" | 7 3/4" | 3.75" | Round | 1/2" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 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 | |||||||||
| 1/2" | 0.5" | 7 3/4" | 3.75" | Round | 1/2" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
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 | |||||||||
| 1/2" | 0.5" | 7 3/4" | 4" | Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Inch Size Combination Drill Bit/Round-Shank
Reamers for Taper-Pin Holes
Drill and ream holes for taper pins with the same tool. These tools have chip breakers on the cutting edge.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | Flute | Overall | Number of Flutes | Flute Style | Spiral Direction | Rate of Taper | Point Angle | For Use On | Each | |
High-Speed Steel | |||||||||||
| 0.3810" | 0.2664" | 5 1/2" | 7 3/4" | 2 | Spiral | Right Hand | 1" per 50" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |