5 blades coal mining drill bit online manufacture

8-1/2inch 5 Blades Rock Drilling Bit Oil Well Drill Bit Steel 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

32mm PDC Rock Drill Bit Anchor Shank Drill Bit Coal Mining Drill Bit 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

Tricone Rock Bit Roller Cone Drill Bit PDC Drill Bit Metal Roller Bit Size: 11 5/8" Cemented Carbide Tooth IADC code: 517 Introducing our top of the line carbide tooth triple cone drill bits, the ultimate ... Read More

8-5/8 6 Blades Diamond Drill Bit Water Well PDC Drills Drilling Machine The polycrystalline diamond composite drill bit is a round shape of the composite chip, which is inserted and welded on a cylindrical ... Read More

8-5/8 5 Blades Diamond Drill Bit Water Well PDC Drill Bit The polycrystalline diamond composite drill bit is a round composite chip, which is inserted and welded on the cylindrical tool, and the tool is ... Read More

8-5/8 5 Blades Rock Drill Bit Water Well Drill Bits PDC Cutter Drilling Machine PDC bits are cheaper than natural diamond bits. After the successful manufacture and use of PDC drills in the early 1970s, ... Read More

8-1/2in 6 Blades Long Drill Bits Coal Mining Bit High Quality Drill Bits 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 ... Read More

6-1/2 6 Blade PDC Rock Bit Water Drill Bit Coal Mining Drilling Machine PDC bits are far less expensive than natural diamond bits, but are only suitable for soft to edium hard formations. After the PDC bit was ... Read More

Core Drill Bits Diamond Tip Core Drill Bit For Hammer Drilling Characteristics:1. The structure of the core drill bit is simple, and the cutting track is single.It is easy to be saltatory during the drilling. ... Read More

3inch Directional Drill Bit PDC Cutter Hight Manganese Steel Metal Drill Bit Characteristics: 1. The bit crown is a flat polished surface, suitable for hard non-abrasive formations. Can be used for strongly ... Read More