5 mm.5 Tap Thread Size, TiAlN Coated - HSS-E-PM tool material for maximum wear resistance - The latest generation of TiALN multi-layer coating - Parameterised flute geometry for optimum chip formation and torsional rigidity Thread type: MF Tool material: HSS E PM Standard: DIN 374 Tolerance class: ISO 2X 6HX Thread pitch: 0.