JB/T 10231.21-2006
Tool inspection methods Part 21: Rotary and rotary impact masonry drill bits with hardmetal tips (English Version)

Standard No.

JB/T 10231.21-2006

Language

Chinese, Available in English version

Release Date

2006

Published By

Professional Standard - Machinery

Latest

JB/T 10231.21-2006

Scope

This part of JB/T 10231 specifies the testing methods and testing instruments for various finished rotary and rotary impact cemented carbide construction drills (hereinafter referred to as impact drills). These methods are not the only ones. This section applies to the testing of impact drills produced in accordance with GB/T 6335.1 and GB/T 6335.2.

JB/T 10231.21-2006 history

• 2006 JB/T 10231.21-2006 Tool inspection methods Part 21: Rotary and rotary impact masonry drill bits with hardmetal tips