E303M4NO1 M Machine Tap Straight Flute

Straight flute nut tap with a 18-20xP extra long taper lead, for ISO-Metric thread M4 with 0.70 mm pitch and 6H class of fit, dimensions according to DIN 357 standard with 2.8mm shank and 2.1mm square drive, cobalt based HSS-E with bright finish for 2xD through or blind hole threading in free machining steel