6" DTH Bits:
1. 10 years manufacturing experience
2. Certificate: ISO9001:2008
3. Material: Carbide
Bit face shape selection
Carbide button shape selection
Drill Bit | Bit Dia. (mm) | Air Holes No. | Gauge Buttons | Front Buttons | |
mm | inch | ||||
NM6
| 152 | 6 | 2 | 8*Φ18 | 8*Φ16 |
165 | 6 1/2 | 2 | 8*Φ18 | 10*Φ16 | |
175 | 6 7/8 | 2 | 8*Φ18 | 10*Φ16 | |
190 | 7 1/2 | 2 | 10*Φ18 | 12*Φ16 | |
203 | 8 | 2 | 10*Φ18 | 14*Φ16 |