Description

Spiral flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Coarse thread UNC 7/8" with 9 TPI and 2B class of fit, dimensions according to ISO 529 standard with 16.0mm shank and 12.5mm square drive, powder metallurgical HSS-E with steam tempered surface finish and 45° helix angle for 2.5xD blind hole threading in general purpose applications

Product Feature

Steam Tempered (Steam Oxide) Surface Treatment

Thread Form, Unified Coarse

ISO 529 – Tap Standard

Internal Inch Thread Medium Class of Fit

Blind Hole Application

2.5×D Usable Tool Depth to Diameter Ratio

High Speed Cobalt Powder Metal Tool Material

Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)

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