2022-07-18MZG 1PC Straight Shank HRC55 9.1mm-12.0mm Drill Bits for CNC Precision Hole Machining Milling Tungsten Steel Drilling1.MZG Drill Bits Item SpecificsMZG Drill Bits Specification Parameter2.MZG Drill Bits Product Photo3.MZG Drill Bits Packing InfoDri..