Carbide Button Choose Guide
| Product | Spherical Button | Ballistic Button | Ogive Button | ||
| Applicable types | Regular type | Retrac type | Regular type | Retrac type | Especially suitable for pneumatic rock driller |
| Hard Rock | ★ | ★ | ★ | ★ | |
| Medium Hard Rock | ★ | ★ | ★ | ★ | |
| Soft Rock | ★ | ||||
| Abrasive Rock | ★ | ★ | ★ | ★ | |
| Non-Abrasive Rock | ★ | ★ | |||
| Homogeneous Rock | ★ | ★ | ★ | ||
| Fissure Rock | ★ | ||||
Remarks:Other specification bits are available according to customer’s requirements.
Physical Performance Of 11° Tapered Drill Bits
| Items | Measured Data | |
| GF20B | GF20G | |
| D(g/cm3) | 14.94 | 14.97 |
| HC(Oe) | 143 | 140 |
| σs | 9.1 | 8.8 |
| Ms/% | 95 | 92 |
| TRS(MPa) | 3300 | 3362 |
| POROSITY | A02B00C00 | A02B00C00 |
| ETA Phase | None | None |
| Grain size(μm) | 2.5 | 3 |
| MAX | 20 | 14 |
| Structure Patches | None | None |
| KIC | None | None |
| HRA | 90.3 | 90.4 |
| HV30 | 1440 | 1440 |
Product Parameters Of 11° Tapered Drill Bits
PZD：Tapered Bit；
Carbide button shape，D：Ballistic button，Z：Ogive Button；
Maximum diameter of bit，Unit：mm, exaple：036；
Type of powder discharging groove，TC：Regular type，XC：Inclined groove type；
Appendix code，default 01，for length and technologies distinction；
Button quantity，example：0502,05：gauge buttons，02：front buttons；
Bit body information，example：0722,07：internal taper degree，22：internal hole diameter.
Carbide button shape，D：Ballistic button，Z：Ogive Button；
Maximum diameter of bit，Unit：mm, exaple：036；
Type of powder discharging groove，TC：Regular type，XC：Inclined groove type；
Appendix code，default 01，for length and technologies distinction；
Button quantity，example：0502,05：gauge buttons，02：front buttons；
Bit body information，example：0722,07：internal taper degree，22：internal hole diameter.
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