We are specialized in tricone bits, PDC bits, drag bits, big diameter bits, and customized bits. Our products are mainly used in drilling oil well, gas well, mine well, water well, subterranean heat, piling of foundation or construction. We are serving for drilling contractors since 1983. The quality of our products is reliable and prices are reasonable, large quantity in stock ensure the supplying ability and rapid delivery. Hope we can establish business relationship with you. The profile of our products is as follows: 1.There are both steel tooth tricone bits and T.C.I. tricone bits available, various of series consist of different sizes and IADC codes. 2.PDC bits-Pollycrystalline Diamond Compact bits, we can manufacture 3, 4, 5, 6 & 8-Wing with 1/2", 5/8" & 3/4" diamond cutters. 3. Big diameter hole opener is widely used in foundation & construction piling project, multi-cones, customized diameters, suitable for various of complex formations. 4. Various of drilling tools are manufactured for well drilling, like drilling tools, fishing tools, drag bits, etc. .