E258M18 M Machine Tap Spiral Flute 15°

Spiral flute tap with chamfer form C with a 2-3xP plug lead, for ISO-Metric thread M18 with 2.50 mm pitch and 6H class of fit, dimensions according to DIN 376 standard with 14.0mm shank and 11.0mm square drive, powder metallurgical HSS-E with bright finish and 15° helix angle for 1.5xD blind hole threading in alloy steel