Product DescriptionTake the guesswork from measuring, marking, reading, and transferring angles with the General Tools Digital Angle Finder Ruler. One button activates the reverse angle function, a hold button digitally saves the measurement, and the large ergonomic locking saves the angle manually. The protractor tool includes a battery-powered gauge with a 1 CR2032 lithium-ion battery. It helps guide you through your wood-inspired projects, stair and patio construction, tiling, and many woodworking, carpentry, and contractor needs in the shop and field. This digital tool combines the ruggedness of analog rulers, both standard and metric, together. At General Tools, we offer over 1,000 products to choose from. We're proud to provide merchants, artisans, and DIYers worldwide with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection gear.From the ManufacturerOur Utility Grommet Kits provide an economic solution for repairing tarps, tents, awnings and pool covers. Each easy-to-use set includes a hardened steel hole cutter, a matched mandrel/anvil pair, a hardwood backer block and an assortment of grommets. We offer three kit sizes (1/4, 1/2 and 3/8-inch) as well as the option to purchase additional grommets.