直径系列:3.00,3.30,3 50,3 80,4 00,4.30,4.50,4.80,5. 00,5. 80,6. 00,6.80,
7.00,7.80,8.00,8.80,9.00,9.80,10.00,10,75,11.00,11.75,12.00,12.75,13.00,
13.75, 14.00,14.75,15.00,15.75,16.00,16.75,17.00,17.75,18.00,18.70,
19.00,19.70
锥柄号
|
扩孔钻直径
|
1号
|
7.80,8.00,8.80,9.00,9.80,10.00,10.75,11.00,11.75,12.00,12.75,13.00.13. 75,14.00
|
2号
|
14.75.15.00.15.75. 16.00.16.75, 17. 00, 17.75.18.00,18.70, 19.00,
19.70,20, 00,20. 70,21.00,21.70,22.00,22.70,23.00 |
3号
|
23.70,24.00, 24. 70, 25.00, 25. 70,26. 00, 27.70, 28. 00,29. 70,
30.00,31. 60 |
4号
|
32.00.33.60, 34.00.34.60.35. 00,35.60, 36.00, 37.60, 38.00,39. 60,
40.00.41.60.42.00, 43. 60.44.00, 44. 60, 45.00, 45.60, 46. 00, 47. 60, 48.00,49.60.50.00 |
直径范围d(h8)
|
d₁
|
d₂
|
L
|
|
大于
|
至
|
|||
23.6
|
35.5
|
13
|
d-5
|
45
|
35.5
|
45
|
16
|
d-6
|
50
|
45
|
53
|
19
|
d-8
|
56
|
53
|
63
|
22
|
d-9
|
63
|
63
|
75
|
27
|
d-11
|
71
|
75
|
90
|
32
|
d-13
|
80
|
90
|
101.6
|
40
|
d-15
|
90
|
注:下列直径的扩孔钻推荐作为常备尺寸(mm): 25,26,27,28,29,30,31, 32,33,34,35,36,37,38,39,40,42,44,45,46,47,48,50,52,55, 58. 60,62,65,70,72,75,80,85,90,95,100。