| 工件材質 | P類(鋼), M類(不銹鋼), K類(鑄鐵), N類(有色金屬), S類(耐熱合金) |
|---|---|
| 鑽頭直徑(Dc,mm):XX.XX | 0,98– 1,84, 1,85– 2,60, 2,61– 3,35, 3,36– 4,05, 4,06– 5,15, 5,16– 7,05, 7,06– 8,55, 8,56–13,05, 13,06–18,05, 18,06–23,00, 23,01–26,50, 26,51–32,00 |
| 工件鑽深< ? 倍深 | 10D, 20D, 30D, 40D, 50D, 60D, 70D, 80D, 90D, 100D |
| 柄徑代號(mm):BBB | 004, 006, 010, 016, 020, 025 |
