12 Select-A-Scale (TM) Engineer Drafting Scale Ruler

Select-A-Scale (TM) engineer drafting ruler. Aluminum 12" engineer scale with rotating rod is is made from high quality extruded aluminum with ultra smooth edges. Fixed scale is 50 parts per inch and rotating scales are 10, 20, 40, 10:1, 20:1 and 40:1. This scale is an ultra convenient and functional drafting tool that allows to select multiple scales all in one product. FOR ARTWORK TEMPLATE, CLICK "SALES TOOLS" BUTTON