Dormer 7/8in – 9UNC HSS-E-PM Machine Tap – E021

Spiral point machine tap with chamfer form B with a 3.5 – 5 x P plug lead, for Unified National Coarse thread UNC 7/16in with 14 TPI and 2B class of fit, dimensions according to ISO 529 standard with 8mm shank and 6.3mm square drive, powder metallurgical HSS-E with uncoated surface finish for 2.5 x D through hole threading in general purpose applications.

Brand :Dormer

Manufacturer Part Number :E0217/8

Size (in) :7/8 – 9

Features & Benefits : E021 series
thread form, unified coarse
Meets ISO 529 standards
Internal inch thread medium class of fit
Through hole application
2.5 x D usable tool depth to diameter ratio
Plug tap chamfer (3.5-5 pitch lead)
Spiral point geometry
Right hand rotation/cutting

Thread Size x Pitch :7/8 – 9

Overall Length (in) :4.6457

Overall Length (mm) :118

Flute Type :Spiral Point

Type :Machine Tap

Material :HSS-E-PM

Coating/Finish :Steam Tempered