E501 M3 nr 3 masinakeermepuur

Straight flute tap NO3, threading chamfer length 2-3xP, left-hand ISO metric thread M3, 0.50 mm pitch, 6H tolerance class, measurements according to standard ISO 529, 3.15 mm shank, 2.5 mm square drive, HSS, bright, 1.5xD for deep blind or through hole threads, for carbon and unalloyed carbon steel