| 标 称 |
钻头径 |
2 级
内螺纹最大内径 |
| SM1/16-80 |
1.25 |
1.281 |
| SM5/64-64 |
1.55 |
1.592 |
| SM3/32-100 |
2.1 |
2.156 |
| SM3/32 -56 |
1.9 |
1.936 |
| SM1/8 -44 |
2.5 |
2.605 |
| SM1/8 -40 |
2.5 |
2.551 |
| SM9/64 -40 |
2.9 |
2.948 |
| SM11/64-40 |
3.7 |
3.742 |
| SM3/16-32 |
3.9 |
3.980 |
| SM3/16-28 |
3.8 |
3.844 |
| SM7/32-32 |
4.7 |
4.774 |
| SM15/64-28 |
5.0 |
5.055 |
| SM1/4-40 |
5.6 |
5.726 |
| SM1/4-28 |
5.4 |
5.452 |
|
| 标称 |
钻头径 |
2 级
内螺纹最大内径 |
| SM1/4-24 |
5.2 |
5.266 |
| SM9/32-28 |
6.2 |
6.256 |
| SM9/32-20 |
5.8 |
5.824 |
| SM5/16-28 |
6.9 |
7.050 |
| SM5/16-24 |
6.8 |
6.864 |
| SM5/16-18 |
6.3 |
6.444 |
| SM3/8-28 |
8.5 |
8.637 |
| SM3/8-18 |
8.0 |
8.053 |
| SM7/16-28 |
10.1 |
10.224 |
| SM7/16-16 |
9.3 |
9.440 |
| SM1/2-28 |
11.7 |
11.812 |
| SM1/2-20 |
11.3 |
11.410 |
| SM1/2-12 |
10.3 |
10.420 |
|
