... ,Western unionDelivery termsBy sea or by airDelivery timeWithin 3 to 7 daysMarketCanada, USA,Middle east ,Africa, ... hole opener,hole enlarger,drag bit,button bit and drilling equipment for petroleum&gas ,water well ,mining ... Marl, Clays, Sands, Salts etc.1187.3~346.17 3/8~13 5/8441~735120~50softClays, Soft Shale ... Basalt Granites, Pyrites etc.795.2-174.63 3/4-6 7/8294-53980-40Contact information TCI Bit ...