Диаметр сверла может быть рассчитан из:
D = Dnom- P
D = Диаметр сверла (мм)
Dnom = Номинальный диаметр метчика (мм)
P = Шаг метчика (мм)
| МЕТЧИК | ШАГ | MAX ВНУТР.ДИАМ. | СВЕРЛО ДИАМ.ММ | СВЕРЛО ДИАМ.Дюйм |
|---|---|---|---|---|
| 1.6 | 0.35 | 1.321 | 1.25 | 3/64 |
| 1.8 | 0.35 | 1.521 | 1.45 | 54 |
| 2 | 0.4 | 1.679 | 1.6 | 1/16 |
| 2.2 | 0.45 | 1.833 | 1.75 | 50 |
| 2.5 | 0.45 | 2.138 | 2.05 | 46 |
| 1.6 | 0.35 | 1.321 | 1.25 | 3/64 |
| 3 | 0.5 | 2.599 | 2.5 | 40 |
| 3.5 | 0.6 | 3.010 | 2.9 | 33 |
| 4 | 0.7 | 3.422 | 3.3 | 30 |
| 4.5 | 0.75 | 3.878 | 3.8 | 27 |
| 5 | 0.8 | 4.334 | 4.2 | 19 |
| 6 | 1 | 5.153 | 5 | 9 |
| 7 | 1 | 6.153 | 6 | 15/64 |
| 8 | 1.25 | 6.912 | 6.8 | H |
| 9 | 1.25 | 7.912 | 7.8 | 5/16 |
| 10 | 1.5 | 8.676 | 8.5 | Q |
| 11 | 1.5 | 9.676 | 9.5 | 3/8 |
| 12 | 1.75 | 10.441 | 10.3 | Y |
| 14 | 2 | 12.210 | 12 | 15/32 |
| 16 | 2 | 14.210 | 14 | 35/64 |
| 18 | 2.5 | 15.744 | 15.5 | 39/64 |
| 20 | 2.5 | 17.744 | 17.5 | 11/16 |
| 22 | 2.5 | 19.744 | 19.5 | 49/64 |
| 24 | 3 | 21.252 | 21 | 53/64 |
| 27 | 3 | 24.252 | 24 | 61/64 |
| 30 | 3.5 | 26.771 | 26.5 | 1.3/64 |
| 33 | 3.5 | 29.771 | 29.5 | 1.5/32 |
| 36 | 4 | 32.270 | 32 | 1.1/4 |
| 39 | 4 | 35.270 | 35 | 1.3/8 |
| 42 | 4.2 | 37.799 | 37.5 | |
| 45 | 4.5 | 40.799 | 40.5 | |
| 48 | 5 | 43.297 | 43 | |
| 52 | 5 | 47.297 | 47 |