8 3/4in 222mm PDC Drill Bit For Super Hard Formations Rock Drill Bit PDC Drill Bits 8 3/4″ 222mm XH 6163A for Oil Drilling in Super Hard Formations XH ...
8 Gauge PDC Rock Drill Bit - 9 1/2" (241mm) PDC Cutters for Drilling - 50-59 KN.M PDC Drill Bit 9 1/2″ 241mm XH 5164LM for Oil Drilling in Super ...
Made in China Steel Body Six-Blade 8 3/4" (222mm) Model XD6194 BMR PDC Oil & Gas Well Drilling Bit XD Series Features Suitable for improving the ...
114/142/156mm Eccentric Reaming HDD Rock Bits Drill Bit For Granite Rock PDC High-Speed Casing Running & Reaming Bit | Polycrystalline Diamond Compact ...