iGaging Steel Rule
A simple, double-sided stainless rule that is handy for use in any workshop.
The Metric side shows graduations every 1/2 millimetre on one edge and every millimetre on the other. The Imperial side shows 1/64th graduations on one edge and 1/32th graduations on the other. On this side both zero and 12in are the ends of the rule itself.
At 1mm thick it is rigid enough without being heavy and all lines are acid-etched in fine black to make it relatively easy to line it up by eye.