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Chinese Standard: GB/T 6138-2023

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Subland twist drills for holes prior to tapping screw threads


Standard in brief
Scope of Application:  
本文件规定了攻丝前钻孔用莫氏锥柄阶梯麻花钻和直柄阶梯麻花钻(普通级和精密级)的符号、型式和尺寸、标记示例和技术要求。
本文件适用于:
——M8~M30普通螺纹攻丝前钻孔用莫氏锥柄阶梯麻花钻的制造;
——M3~M14普通螺纹攻丝前钻孔用直柄阶梯麻花钻的制造。
本文件与ISO 13399系列文件中的符号之间的关系见附录A。

Basic information
Standard No:GB/T 6138-2023
Standard Name:攻丝前钻孔用阶梯麻花钻
English Name:Subland twist drills for holes prior to tapping screw threads
Standard Status:现行
Release Date:1985-01-01
Effective Date:2024-04-01
Language of Publication:中文简体

Standard Classification
ICS Number:25.100.30
CCS Number:J41

Related Standards
Referenced Standards:GB/T 1442,GB/T 1443,GB/T 1804,GB/T 6139
Adopted Standards:ISO 3438:2013
Adopted Standard Name:《攻丝前钻孔用阶梯麻花钻》
Adoption Level:MOD

Publication Information
Number of pages:12
Number of words:21 K
Format:大16
Edition:1
Color Pages:0
Electronic Version:Yes
Color Images:No
Print Publication Date:2023-09-01

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:6138
Drafter:张继波、彭礼颖、陆少峰、吕德瑾、张及英、朱学明、焦余华、季诗俊
Drafting Organization:国宏工具系统(无锡)股份有限公司、江苏爵克数控刀具有限公司、江阴塞特精密工具有限公司、江西杰浩硬质合金工具有限公司、威海威硬工具股份有限公司
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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