5 blades coal mining drill bit online manufacture

4.5inch 4 Blades PDC Well Drilling Bit PDC Drill Bit Rock Drilling Bits Characteristics: 1. The crown surface of the bit is medium cast surface which makes the bit suitable for normal hard to hard and strong ... Read More

6 4/5inch Directional Drill Bit Minning PDC Diamond Drill Bit Characteristics: 1. The crown surface of the bit is a flat polishing surface, which is suitable for hard and non abrasive formation. It can be used ... Read More

6inch 4 Blades PDC Well Drilling Bit API Rock Drilling Bit Characteristics: 1. The bit crown is a medium cast surface for medium to hard and abrasive formations. 2. The design of the middle casting surface has ... Read More

3inch PDC Well Drill Bit PDC Drill Bit Rock Mining Drilling Bit Characteristics: 1. The shape of the crown surface of the drill bit is a medium-polished surface, which is used in medium-hard to hard and highly ... Read More

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

PDC Guide Pillar Reaming Drill Bit For Mine Coal Drilling Characteristics: 1. The guide pillar acts as a guide during the reaming so that the bit is more stable and will not deviate from the original direction. ... Read More

PDC Directional Diamond Drill Bit For Mine Coal Drilling Characteristics: 1. The crown of the bit is flat cast surface which is suitable for hard and non-abrasive formation. 2. The top of the bit is shallow ... Read More

133mm PDC Well Drilling PDC Mining Bit Drilling Tools Steel Drill Bit Characteristics: 1. The bit crown surface is medium cast surface, the bit suitable for normal hard to hard and strong abrasive formation. 2. ... Read More

8-1/2inch 6 Blades Rock Drilling Bit Coal Mining Bits Matrix Body The diamond bit has a wide working range and can penetrate quickly even in softer rock where the bit is lighter in weight. When the ground gets ... Read More

113mm Steel Body PDC Bit Diamond Non-Core Drill Bit Water Drill Bit Characteristics: 1. The drill has a shallow taper and a large nozzle in the center of the drill. Therefore, the drill has the advantages of ... Read More