Just discoverd this forum, great rescource!!!! I often see great recommendations for "Machinery's handbook", Is this also usefull when working with Metrical units? does it cover also eg. DIN or ISO....?
It includes a bit of everything. I work fully with SI units and it's invaluable. It usually includes references to most of the worlds leading standards.
Depending on what your looking for it will includes DIN and ISO along with BS and others.