Korloy company undertook optimizing to the appearance of geometry of the chamfer that break bits of AK razor blade, make bit can efficient treatment weak data and agglutinant material (like aluminium alloy) . The geometrical appearance of the chamfer that break bits uses 3D NURBS (Non Rational B Splines, be not even B batten) technical design, cutting tool life and workpiece surface are bright and clean degree can rise 120% . CNC MillingCNC Machining