Taps with TiN or TiCN coating, have high performance on Iron, Low & medium carbon steel, Stainless Steel. 1.Standard: JIS2.Coating: TIN or TICN3.Work Material: Low, Medium carbon steel, Iron, Stainless Steel4.Thread type: Metricl, UNC, UNF, Whitworth Spiral Fluted Tap - TiN Coating