Hammer drill is widely used in metallurgy, coal, railway, transportation, water conservancy construction and national defense stone works, etc.
| Model | G10 | G20 |
| Weight （kg） | 10 | 20 |
| Length （mm） | 520 | 500 |
| Working pressure（Mpa） | 0.4-0.63 | 0.4-0.63 |
| Impact （b.p.m） | ≥0.5mpa | ≥32 |
| Impact frequency | ≥16 | ≥25 |
| Gas consumption（m3/min） | ≤26 | ≤20 |
