hardness pdc cutter insert premium pdc bits

Bits Parameters Drilling Parameters Size Nozzle number Gauge length API connections Hydraulic flow rate Rotation speed Weight on bit in No. in in 1/s gpm rpm KN KIbs 8 1/2 6-8 2-3 4 1/2 25-38 400-600 60-350 13-66 3-15 9 7/8 6-8 2-4 6 5/8 30-44 475-700 60-350 13-90 3-20 12 1/4 6-9 2-4 6 5/8 38-60 600-950 60-350 13-100 3-22 16 6-9 3-5 7 5/8 60-90 950-1450 60-350 17-135 4-30 17 1/2 6-9 3-5 7 5/8 60-90 950-1450 60-350 17-135 4-30 Diamond Core Bits is the most important part in