NL Chip Breaker:Unique three-dimensional chip breaker and sufficient Chip Pocket can efficiently guarantee chip break and chip removal performance. Large rake angle and back angle form sharp cutting edge,it’s optimized quick cutting and lower cutting loading.Special design in cutting edge inclination can efficiently control flow direction of chip.mirror effect in rake angle can efficiently reduce the possibility of bonding and restrain built-up edge,consequently obtains good surface quality and insert life.