coal mining bits online manufacture

94mm PDC Well Bit Concave Drill Bit Rock Drill Bit Water Drill Bit Characteristics: 1. The top surface of the bit is shallow with 3 small nozzles. and in the circumferential direction of the blades there are 3 ... Read More

6inch Directional Drill Bit with 4 Wings Use For Deep Well Drilling Characteristics: 1. The crown surface of the drill bit is a flat surface, which is suitable for hard and non-abrasive formations. It can be ... Read More

9 1/2 Inch 6 Blades Mining Drill Bits Tapered Drill Bit 1. Using new superhard materials, the tool head has a long service life; 2. The drilling efficiency can be greatly improved in medium hard rock and hard ... 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

3inch Coal Mining Drill Bit Concave Drill Bit Water Drill Bit PDC Bit Characteristics: 1. The top surface of the bit is shallow with 3 small nozzles. and in the circumferential direction of the blades there are ... Read More

Anchor Shank Drill Bit 2 Blades Coal Mining Drill Bit Steel Body PDC Bit Characteristics: 1. There are two types of diamond composite sheets: flat sheet and spherical sheet. The flat sheet is fast and can be ... Read More

94mm Directional Drill Bit Coal Mine Bit 5 Blades PDC Mining Bit Characteristics: 1. The Directional Drill Bit crown is a flat polished surface for hard, non-abrasive formations. it can be used for strongly ... Read More

2 Blades Anchor Shank Drill Bit Coal Mining Drill Bit PDC Cutter Bits Characteristics: 1. Using the PDC cutters and spherical cutters. Both of theses cutters make the bit can drill faster, so they are applied ... Read More

8-1/2inch 5 Blades Concrete Core Drill Bit Oil Well Drill Bit Gauge Length The diamond bit has a wide working range and can penetrate quickly even in softer rock with low bit weight. When the ground gets harder... Read More

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