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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Extended-Length Drill Bits
Black Oxide
Access hard-to-reach spots and drill deep holes.
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Specifications Met | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 20.0 mm | 0.7874" | 254mm | 166mm | Round | 20mm | Standard | Steel, Iron | DIN 340 | 000000000 | 0000000 |