This handy measuring tool gives you quick access to dozens of drill points, including over 50 electronic locks, yet is compact enough to fit in your shirt pocket or your wallet. The magnetic backing allows the Safeman's Ruler to quickly attach to the safe door and the design features measurements on three sides to allow precisely measuring both the vertical and horizontal components of the drill point without re-positioning the ruler. Keep one in your shop, one in your service van and another in your wallet and you'll never need to call for a drill point again!