Perfect set for the professional craftsman Tap and die set is designed to thread cutting. Industrial grade GCr15 bearing steel construction ensures durability and tool longevity to withstand professional uses
All cutting teeth are precisely CNC machined and accurately heat treated to Rockwell hardness 60 HRC for best threadingperformance. Perfect to create new threads or repair damaged threads on most metals like carbon steel, cast iron, aluminum, brass, copper and stainless steel; Taps (for internal threads) and Dies (for external threads) feature with tapered teeth that start threading more easily.