标准号：ISO 3439-2003
实施状态：作废
中文名称：攻丝前先钻孔的直柄阶梯麻花钻
英文名称：Subland twist drills with cylindrical shanks for holes prior to tapping screw threads
发布日期：2003-09
被替代标准：ISO 3438-2013
代替标准：ISO 3439-1975;ISO/FDIS 3439-2003
采用标准：DIN 8378-2005,MOD;BS ISO 3439-2003,IDT;GB/T 6138.1-2007,MOD;NF E66-077-2004,IDT;GOST R 52966-2008,IDT
起草单位：ISO/TC 29
标准简介：This International Standard lays down the dimensions of subland twist drills with cylindrical shanks for holes prior to tapping screw threads.
The drills have been designed to produce holes prior to tapping metric threads (coarse pitch series) over a selected range of M3 to M14.
This International Standard complements ISO 2306.
Subland twist drills with Morse taper shanks for holes prior to tapping screw threads are dealt with in ISO 3438.
文件格式：PDF
文件大小：103.04KB
文件页数：8
（以上信息更新时间为：2019-11-23）
ISO 3439-2003 攻丝前先钻孔的直柄阶梯麻花钻.pdf
(103.04 KB)
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