Wholesale API 120mm roller cone bits for small diameter micro piling rock drill bucket in the stock from China OEM manufacturer. For small diameter holes micro piling application, the rock drill bucket is always 400mm, 500mm, 600mm, 700mm, 800mm. 120mm is the cone diameter of 7 7/8" tri-cone bit. Features of C120 series micro piling roller cone bits
Far Eastern are factory specializes in drill bits,such as roller cone bit, tricone roller cone bit, tricone bits,HDD hole opener,Foundation roller cutters for different applications. The application including oil field,natural gas,geological exploration,driectional boring,mining ,water well drilling ,HDD, construction,and foundation. As a leading drill bits factory in China,increase the drill bit working life is our target. We always try to improve the bits with high penetration rates.Our purpose is to sell the high quality with the lowest price.Far eastern drilling quality and technology will help you to achieve more !| 1 | Journal sealed bearing with TCI protection on heel of cones. |
| 2 | Cone 1/2/3 speed up rock breaking rate. |
| 3 | Shirttail hard enhanced by Tungsten Carbide. |
| 4 | C120-637 adopts 12mm conical-ball TCI. |
| 5 | C120 series suits for smaller core barrel , penetration rate is much higher. |
