GB/T 4258-1984
Countersinks with parallel shanks for angles 60 degree,90 degree and 120 degree inclusive (English Version)

Standard No.

GB/T 4258-1984

Language

Chinese, Available in English version

Release Date

1984

Published By

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

Status

Be replaced 2004-08

Replace By

GB/T 4258-2004

Latest

GB/T 4258-2004

Scope

60°, 90°, 120° Straight Shank Tapered Countersink Drills

GB/T 4258-1984 history

• 2004 GB/T 4258-2004 Parallel shanks countersinks for angtles 60°、90°and 120°inclusive
• 1984 GB/T 4258-1984 Countersinks with parallel shanks for angles 60 degree,90 degree and 120 degree inclusive