... stamping die 4. Different sizes 5. 10 years experience Motor rotor stamping die 1. Die cutting edge material is tungsten steel ... electric motors, shaded pole motors, series/clutch motors, sewing machine motors, DC motors, brushless DC motors and auto motors ... CNC, WEDM-LS, High speed milling center, Mirror EDM machine, Precise grinding machine, Drilling, water grinding etc.Quality control inhouse: CMM, ...