The tap is made of NC6 steel (W-1.2063) with a hardness of 60°HRc (+/-1°). It is oil-hardened and has high wear resistance, particularly up to temperatures of +200°C. The tap features a threaded profile ground with a 60° angle, 3 chip removal holes for effective discharge of cuttings, and clamping holes for support in thread facilitators with a 20x5mm socket. This round tap is intended for normal right-hand measurement threads according to ISO DIN-13, in the basic category for the most commonly used thread tolerances according to ISO (6g). The tap has a pitch of 1.75P. Compatible with the DIN-EN 22 568 standard (formerly DIN-223). Size: M16 x 1.5mm