Veritas adds versatility to your precision steel rule with their ruler stop. They designed the stop to be positioned and removed quickly and easily. Slide this little stop over your ruler and tighten its brass set screw to create a reference point for repeatable measurements.
The Veritas ruler stop fits rulers between 7/8″ and 1-1/8″ wide and up to 1/20″ thick. It’s made from anodized black aluminum, with raised ridges and a contoured body so you can easily grip it between your thumb and forefinger. And the brass adjustment screw won’t damage your precision ruler.
The Veritas ruler stop costs about $15 at Lee Valley, ruler not included.