尺寸 |
型号(IADC) |
英寸 |
mm |
镶齿牙轮钻头 |
钢齿牙轮钻头 |
6 |
152.4 |
517, 537,617, 637 |
126.127.216.217. 316.346.347 |
6 1/2 |
165.1 |
517, 537 |
126.127.216.217. 316.346.347 |
7 7/8 |
200.0 |
517,527,547,617,627,637 |
126.127.216.217. 316.346.347 |
8 1/2 |
215.9 |
437,447,517,537,617,627,637 |
126.127.216.217. 316.346.347 |
9 1/2 |
241.3 |
437,517,537,547,617 |
126.127.216.217. 316.346.347 |
9 5/8 |
244.5 |
437,517, 537,547,617 |
126.127.216.217. 316.346.347 |
9 7/8 |
250.8 |
437,517, 537,547,617 |
126.127.216.217. 316.346.347 |
12 1/4 |
311.1 |
437,517, 537,547,617,627,637 |
126.127.216.217. 316.346.347 |
17 1/2 |
444.5 |
517,537,617,627,637 |
126.127.216.217. 316.346.347 |
24 |
609 |
417,517, 537,547,617,637 |
126.127.216.217. 316.346.347 |
26 |
660 |
417,517, 537,547,617,637 |
126.127.216.217. 316.346.347 |