9 nozzle pdc reamer online manufacture

12 1/4 Inch 6 Blades High Quality Drill Bits Tricone Drill Bit 1. The crown face of the drill bit is a short casting face, suitable for the formation of hard and neutral abrasives. 2. The taper surface is ... Read More

12 1/4 Inch 5 Blades Cross Drill Bit Tapered Reamer Drill Bit Rock Drill Bits 1. Tool exposure is optimized to ensure the bit is capable of higher ROP (soft to moderate formations). 2. The shock absorber is ... Read More