Description
Spiral point tap Blue Shark with chamfer form B with a 3.5-5xP second lead, for 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 Super-B coating for 2.5xD through hole threading in ferritic, martensitic and austenitic stainless steel
