Details: diamond PDC bit|12-1/4"GD 1905S specification Number of blade 5 Cutter size (mm) 19MM Nozzle QTY Type 7NZ Gauge length 2.5" Junk slot area(in^2) 58.0 connection 6-5/8"API Reg Make up Torque(KN.M) 49.6-51.4 Operating parameters Rotary speed(rpm) 60-260 Weight on bit(KN) 30-140 Max wob(KN) 180 Flow rate (lps) 28-70 Applications and features applications Recommended Formation: Soft to Medium hard formation with low compressive strength interbedded with hard layers. Rock type :Clay stone. ,Marl .Lignite .Sandstone.Tuff. Features:The type is a matrix body PDC bit with 5 curved blades and medium short parabolic profile Force-balance design and Low