Min. Order Reference FOB Price
1 Piece US$18,000.00-20,000.00 / Piece
Product Description
8 1/2'' PDC-roller compound bit with new design PDC-roller compound bit is composited by PDC fixed cutting and roller free cutting structure.Rock will be broken by roller teeth's impact crushing. it'll formsbreaking pits on bottom, the uneven surface will weaken rock strenngth. Under roller's ...