UNE 16506-3:2000 Assembly tools for screws and nuts. Screwdriver bits. Parte 3: Screwdriver bits for hexagon socket screws, with shank. Technical specifications and tests.
2000UNE 16506-3:2000 Assembly tools for screws and nuts. Screwdriver bits. Parte 3: Screwdriver bits for hexagon socket screws, with shank. Technical specifications and tests.