tci roller bit drilling online manufacture

Tricone Rock Bit Roller Cone Drill Bit PDC Drill Bit Metal Roller Bit 1. The main purpose of the roller cone bit: drilling, exploration, oil, drilling 2. The roller cone bit mainly relies on percussion, ... Read More

Roller Cone Drill Bit PDC Drill Bit Metal Roller Bit Tricone Bit 1. Main uses of roller cone bits: drilling, exploration, oil, drilling 2. The roller cone bit mainly relies on percussion, crushing and breaking ... Read More

8.75inch 5 Blades Tungsten Carbide Drill Bits PDC Drill Bits Tci Tricone Bit 1. Rolling seal bearing structure, the cylindrical roller cone is in the groove, which increases the size of the journal. 2. Thrust ... Read More