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Chinese Standard: GB/T 20331-2025

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Machine taper 1∶50 pin reamers with parallel shanks


Standard in brief
Scope of Application:  
本文件规定了直柄机用1∶50锥度销子铰刀(以下简称“销子铰刀”)的型式和尺寸、标记、技术要求、标志和包装。
本文件适用于2 mm~12 mm销子铰刀的制造。

Basic information
Standard No:GB/T 20331-2025
Standard Name:直柄机用1∶50锥度销子铰刀
English Name:Machine taper 1∶50 pin reamers with parallel shanks
Standard Status:现行
Release Date:2006-07-20
Effective Date:2026-05-01
Language of Publication:中文简体

Standard Classification
ICS Number:25.100.30
CCS Number:J41

Related Standards
Referenced Standards:GB/T 1442
Adopted Standards:ISO 3466:2016
Adopted Standard Name:《直柄机用锥度销子铰刀》
Adoption Level:MOD

Publication Information
Number of pages:12
Number of words:12 K
Format:大16
Edition:1
Color Pages:0
Electronic Version:Yes
Color Images:No
Print Publication Date:2025-10-01

Standard Revision Information
Has Amendment:No

Other Information
Application Dept:国家市场监督管理总局、国家标准化管理委员会
Standard Type:CN
Standard Attribute:GB
Other Standard Number:20331
Drafter:刘前伦、张继波、许刚、陈文浪、王必永、罗亮、赵骏、李智、刘文举
Drafting Organization:四川天虎工具有限责任公司、国宏工具系统(无锡)股份有限公司、成都工具研究所有限公司、宁波三韩合金材料有限公司
Management Organization:全国刀具标准化技术委员会(SAC/TC 91)
Proposing Department:中国机械工业联合会

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