Subland twist drills with cylindrical shanks for holes prior to tapping screw threads.
NORMA vydána dne 16.9.2003
Designation standards: BS ISO 3439:2003
Publication date standards: 16.9.2003
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Kategorie: Technické normy BS
ISBN: 0 580 42637 8 Status: Definitive