Tianjin Grand Construction Machinery Technology Co., Ltd. deeply engaged in rock breaking tools more...
Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver plated. Abrasion resistance and seizure resistance of the bearing are improved.View More
These kingdream drill bit, kingdream tricone bit, kingdream roller bit, kingdream drill bit are used to drill soft formation with low compressive strength and high drill ability, such as shale, clay, sandstone and soft limestone, etc.View More
We can also supplying Kingdream all series tricone drilling bits, kingdream tricone bit, kingdream roller bit, kingdream drill bit Welcome to come and visit us. Size scope available from 3 7/8"(98.4mm) to 26"(660.4mm)View More