GB/T 1438.4-2008
Taper shank twist drills.Part4:The types and dimensions estra-long for Morse taper shank twist drills (English Version)

Standard No.

GB/T 1438.4-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 1438.4-2008

Replace

GB/T 1438.4-1996

Scope

This part specifies the type and size of extra-long twist drills with Morse taper shank. This part applies to Morse taper shank extra-long twist drills with a diameter of 6.00mm~50.00mm and an overall length of 200.00mm~630.00mm.

GB/T 1438.4-2008 Referenced Document

• GB/T 1443 Self-clamping cones for machine tools and tool holders*， 2016-09-01 Update

GB/T 1438.4-2008 history

• 2008 GB/T 1438.4-2008 Taper shank twist drills.Part4:The types and dimensions estra-long for Morse taper shank twist drills
• 1996 GB/T 1438.4-1996 Taper shank twist drills--Part 4: The types and dimensions for extra-long Morse taper shank twist drills

GB/T 1438.4-2008 -All Parts