Specifications
1).Diamond Drill Bit2).API 7-1
3). three types: natural diamond bit, PDC bit and TSP bit
4).full size
According to different materials that make of the bit, diamond bit is separated into three types: natural diamond bit, PDC bit and TSP bit (or Ballas Bit).
O.D. of drill bit | connection thread/in | torque/kN·m | ||
basic size/mm | size/in | tolerance/mm |
|
|
95.2~107.9 | 3 3/4 ~ 4 1/4 |
+0 -0.38
| 2 3/8 REG | 2.4~3.7 |
120.6 | 4 3/4 |
| 2 7/8REG | 4.2~6.9 |
142.9~171.4 | 5 5/8 ~ 6 3/4 |
| 3 1/2REG | 7.1~11.5 |
190.5~222.2 | 7 1/2 ~ 8 3/4 | +0 -0.51 | 4 1/2REG | 17.0~26.4 |
241.3~342.9 | 9 1/2 ~ 13 1/2 | +0 -0.76 | 6 5/8REG | 50.3~57.5 |
374.6~444.5 | 14 3/4 ~ 17 1/2 | +0 -1.14 | 7 5/8REG | 65.5~86.1 |
508.0~660.4 | 20~26 |
| 8 5/8REG |
|
