產品描述
| Product Name | DTH bits |
| Description |
|
| Material | Alloy steel and tungsten carbide bit |
| Hammer size | 3.5",4",5",6",8",10",12" |
| Bit Diameter | 90- 445mm |
| Button bit face type | flat, convex, concave |
| Button bit insert design | spherical, ballistic, parabolic |
