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8-3/4in 5 Blades Diamond Tip Drill Bit Stone Drill Bits Manufacturers 1. Suit for drilling medium to medium-hard formations. 2. Evolute asymmetrical blade cutter design and balanced bit load so that bit whirl ... Read More

8-3/4in 5 Blades PDC Drag Bit Stone Bits PDC Drill Bits Manufacturers 1. Suit for drilling medium to medium-hard formations. 2. Evolute asymmetrical blade cutter design and balanced bit load so that bit whirl ... Read More

8.5inch 5Blades Concrete Core Bit Oil PDC Rock Bit Machine Stone Drilling Bit Superior PDC tool technology for perfect impact strength and wear resistance. Double row cutters enhance aggression and durability. ... Read More

8.5in 5 Blades Diamond PDC Bit Tapered Drill Bit Machine Stone Drilling Bit Provides multiple advantages in interbed lithology. Enhanced drill bit stability with BHA shock and vibration mitigation. Increases ... Read More

8.5in 5 Blades Diamond PDC Bit Oil Well Drilling Machine Stone Drill Bit Provides multiple advantages in interbed lithology. Enhanced drill bit stability with BHA shock and vibration mitigation. Increases ... Read More

8.5in 6 Blades Concrete Core Drill Bit Oil PDC Rock Bit Stone Drilling Bit Superior PDC tool technology for perfect impact strength and wear resistance. Enhanced bit stability with BHA shock and vibration ... Read More