... steel, high quality tool steel or Stainless steel 3-way or Caliper: Vernier caliper:Made of Carbon steel, high quality tool steel ... or black face, or shock & dust proof.Digital caliper: Include digital caliper Auto on/off, with carbide tipped, with fine adjustment ... welding gage, large LCD left hand use, 3-key,4-key type, ABS key type, hold key type, mode key type, arc outside type, outsidegroove type ...