... /K20, HSS M2/M42/6542 2)Standard or Nonstandard 3)High quality High speed steel ejector pins1)Material: carbide K01/K05/K20, HSS ... , alloy steel, hardened steel, quenched steel, non-ferrous metals, etc.8) Good for machining up to HRC70 degree.9) Less cutting ... feel free to contact us. Any questions are highly welcome! High speed steel ejector pins