GB/T 6078.1-1998
Centre drills. Part 1: Centre drills for centre holes without protecting chamfers--Type A. Dimensions (English Version)

Standard No.

GB/T 6078.1-1998

Language

Chinese, Available in English version

Release Date

1998

Published By

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

Status

Be replaced 2016-09

Replace By

GB/T 6078-2016

Latest

GB/T 6078-2016

Scope

This standard specifies the types and dimensions of center drill type A without a guard cone. This standard is applicable to the center drill-A type without protective cone for processing the A-type center hole (see GB/T145).

GB/T 6078.1-1998 history

• 2016 GB/T 6078-2016 Center drill
• 1998 GB/T 6078.1-1998 Centre drills. Part 1: Centre drills for centre holes without protecting chamfers--Type A. Dimensions

GB/T 6078.1-1998 Centre drills. Part 1: Centre drills for centre holes without protecting chamfers--Type A. Dimensions was changed to GB/T 6078-2016 Center drill.

GB/T 6078.1-1998 -All Parts