HB 6222-1989
Deviation from basic dimensions of technical bottom hole for cutting out ＭＪinternal thread (English Version)

Standard No.

HB 6222-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

Professional Standard - Aviation

Latest

HB 6222-1989

Scope

This standard specifies the basic dimensions and deviations of the bottom hole for MJ internal thread technology. This standard is applicable to the process bottom hole for cutting and processing internal threads. When using a thread milling cutter to process internal threads, the first series of process bottom holes are used.

HB 6222-1989 history

• 1989 HB 6222-1989 Deviation from basic dimensions of technical bottom hole for cutting out ＭＪinternal thread