... steel ,carbidePackingWooden case or steel casePayment termsT/T,L/C,Western unionDelivery termsBy sea or by airDelivery ... Hejian Huanyu Petroleum Machinery Co., Ltd. in China.1) Product :we specializes in manufacturing:Tricone bits,steel ... 8294-53980-60187.3~241.37 3/8-9 1/2539-83360-40hardSandy, Shale, Quartzite, Hard Dolomite ... 53980-40Contact information TCI Bit 165 mm with 3 1/2" REG Pin for Hard Rock