Machine tap for through holes, TiN Metric thread ISO DIN 13 HSS-E PM Tolerance ISO 2 6H Form B with attack zone (4-5 steps) Particularly suitable for stainless and acid-resistant steels such as sulphided, austenitic, martensitic and ferritic steels M2-M10 DIN 371 with hardened shank M12-M20 DIN 376 with reduced shank
