The iGaging multi gauge when used in conjunction with the digital fence gauge jig designed by David Bedrosian makes setting the Centering Scale Fence quick and accurate! The digital LCD readout allows you to precisely set the location of the fence to the thousandth of an inch. The multi gauge can also be used for other tasks around the shop including setting the height of saw blades, router bits and more. iGauging produces high quality accurate measuring tools at an affordable price, save time and increase accuracy by adding this simple jig to your shop! You can find David’s plans HERE. Battery is included with gauge.