Incra IRSET18 18-Inch Marking Rule Set
Instead of squinting at that blur of lines along the edge of your old steel rule, the Incra 18-Inch Marking Rule Set, lets you mark precisely where you want with zero uncertainty and no eye strain. Incra has re-invented the steel rule by putting micro-fine holes at every scale position (every 1/16-inch and 1/32-inch) to instantly locate a sharp pencil or scribe exactly on target. Using a T-square this guide draws perfectly placed horizontal lines with dead-on accuracy, with guide slots that wrap around any edges.