Powerful Rare-Earth Magnets Allow for No-Hassle Quick Ruler Adjustments and Firmly Hold the Ruler to the Body, Durable and Lightweight Aluminum Body With Precision Machined 45 and 90-Degree Edges Can Set a Miter Saw or Table Saw to the Perfect Angle, Effortlessly Find Center Knockouts for EMT Using the Integrated Conduit Layout Template, Double-Sided Ruler Provides Measurements in 1/8-Inch and 1/16-Inch Increments On One Side; Electrical Panel Schedule and Conduit Layout Template On the Other Side For Versatility, Deeply Etched Markings in the 12-Inch, Rustproof, Stainless Steel Ruler Prevent the Print From Rubbing Off, Large, High Visibility Bubble Vial Window With Reinforced Housing is Easy to Read, Place EMT and Rigid Conduit or Conduit Adapters in the Body to Quickly Identify the Conduit Diameters to Easily Plan the Electrical Box Layout, Integrated Stainless Steel Scriber Marks With Pinpoint Accuracy