Drill Bit Decimal Size Equivalents
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About Drill Bits
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Carbide-Tipped Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they 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.
Drill bits with a split point keep centered without a pilot hole.
Drill bits with 135° point angle produce smaller chips than 118° point to prevent clogging.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Standard Point | |||||||||
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 13.0 mm | 0.5118" | 168mm | Round | 13mm | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 101.6mm | 118° | 00000000 | 000000 |
| 14.0 mm | 0.5512" | 168mm | Round | 14mm | Iron, Aluminum, Brass, Bronze, Plastic | 122mm | 118° | 00000000 | 000000 |
Split Point | |||||||||
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 14.0 mm | 0.5512" | 168mm | Round | 14mm | Iron, Aluminum, Brass, Bronze, Plastic | 122mm | 135° | 00000000 | 000000 |
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Metric | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 10.0 mm | 0.3937" | 1 | 0.475" | 168mm | 67mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 00000000 | 000000 |
| 10.2 mm | 0.4016" | 1 | 0.475" | 168mm | 66.5mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 00000000 | 00000 |