1.PCD drill tips 2.TC & PCD 3.drilling 4.kinds of diameter 5.end thread dia 16 & 14mm metal Drilling Bit:1.PCD drill tips2.TC & PCD3.drilling4.kinds of diameter5.end thread dia 16 & 14mmR25N, R32N, R32S, R38N, R51L, R51N, T76N, T76SVarious shapes of bits for various rock formations will be available according to customers requirements.Thread typeDescriptionSizeWeight kg/pctyperemarkR25NCast cross ...