E237M4 M Machine Tap Straight Flute

Straight flute tap with chamfer form C with a 2-3xP plug lead, for left hand ISO-Metric thread M4 with 0.70 mm pitch and 6H class of fit, dimensions according to DIN 371 standard with 4.5mm shank and 3.4mm square drive, powder metallurgical HSS-E with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel