ISO 3438:2013现行
Subland twist drills for holes prior to tapping screw threads
出版：International Organization for Standardization
专家解读视频
Describes the dimensions of subland twist drills with Morse taper shanks and cylindrical shanks for holes prior to tapping screw threads.
BS ISO 3438 : 2013 - Identical
NF ISO 3438 : 2014 - Identical
NBR ISO 3438 : 2014 - Identical
BS ISO 3438 : 2013 - Identical
NS 5344 : 1ED 1977 - Identical
NF ISO 3438 : 2014 - Identical
NBR ISO 3438 : 2014 - Identical
