... sig durable tricone drilling bit1,Species: .pdc bit,diamond bit,durable pdc drilling bit,rock bit, tricone bits ... assemble tricone bits and milled tooth tricone bit) pdc bit and single cone bit.2,Model: ... 5,Moq:1 piece6,Bit body: matrix body,pdc cutters7,Applicable for: petroleum&gas,water well and ... used for oil filed,waterwell. Including tricone bits, PDC bits and drill bits. Various of model and ...