Sturdy Construction: This tap & die sets is made from high-hardness GCr15 bearing steel for enhanced durability
Superior Cutting Performance: All cutting teeth are precisely CNC machined and have accurate heat treatment with 62-65 HRC for excellent threading performance
Wide Application: The tap and die set metric is suitable for creating new threads or repairing damaged threads on most metals (carbon steel, aluminum, copper, cast iron, brass, and stainless steel)