Tianhe wide range and most efficient of down-the-hole hammer and bits were used for mining blasting, water well drilling, geothermal well drilling, ground engineering projects, etc.
| Bit Face Type | |
| 1. Flat Face | 2. Drop Center Face |
 |  |
| Application:Hard to very hard rock and abrasive rock | Application:Soft to medium hard rock and fissured rock |
| 3. Convex Face | 4. Concave Face |
 |  |
| Application:Soft to medium hard rock | Application:Uniform rock |
| Bit Ball Type | |
| Spherical | Parabolic |
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