6 inch coal mining drill bit online manufacture

5 Blades PDC Drill Bit For Oil Well Coal Mining Drilling Equipment PDC Drill bit is an important tool for both oil drilling and coal mining drilling. It is used to drill oil when oil is being extracted. The ... Read More

9 1/2 Inch 6 Blades Mining Drill Bits Metal Drill Bits 1. Advanced geometric design for faseter penetration. 2. Added cutters for maximum performance. 3. TSP gauge protection. 4. Large junk slots for better ... Read More

6 Inch 5 Blades PDC Metal Drill Bits Coal Mining Drilling Equipment PDC Drill bit is an important tool for oil drilling. It is used to drill oil when oil is being extracted. The quality of its working ... Read More

6 Inch 5 Blades PDC Metal Drill Bits Coal Mining Drilling Equipment PDC Drill bit is an important tool for oil drilling. It is used to drill oil when oil is being extracted. The quality of its working ... Read More

6inch PDC Oil Drill Bit Rock Drill Bit Water Drill Bit PDC Bit Characteristics: 1. The taper surface of the drill bit is a shallow taper surface, with strong guidance, and there is a large nozzle structure in ... Read More

6 Inch 5 Blades Metal Drill Bits Carbide Drill Bits PDC Tool Oil drill bit is an important tool for oil drilling. It is used to drill oil when oil is being extracted. The quality of its working performance will ... Read More

9 Inch 5 Blades Carbide Drill Bits Metal Drill Bits Mining Drill Bits 1. Using new superhard material, the cutter head has a long service life; 2. It can greatly improve the drilling efficiency in medium hard ... Read More

9 1/2 Inch 6 Blades Mining Drill Bits Long Drill Bits High Quality 1. Advanced geometric design for faseter penetration. 2. Added cutters for maximum performance. 3. Large junk slots for better hole cleaning. 4... Read More

9 1/2 Inch 5 Blades Tci Drill Bit Cutting Drill Bit Oil Well Drilling Bit This bit is a steel body PDC bit with 5 curved blades and a medium short parabolic profile.The force-balancing design and low friction ... Read More

6inch PDC Core drill bit Rock Drill Bit Well Water Drill Bits Characteristics: 1. The structure of the core drill bit is simple, and the cutting track is single in the underground.It is easy to be saltatory ... Read More