Dormer E003M20 | 0.5512″ Diameter x 4.4094″ OAL 4 Flute Steam Tempered Coated Spiral Flute Tap – All Industrial Tool Supply

Description

Spiral flute tap with chamfer form C with a 2-3xP semi-bottoming lead, for ISO-Metric thread M20 with 2.50mm pitch and 6H class of fit, dimensions according to ISO 529 standard with 14.0mm shank and 11.2mm square drive, powder metallurgical HSS-E with steam tempered surface finish and 45 Degree helix angle for 2.5xD blind hole threading in general purpose applications.