The Wolfcraft 6921000 Adjustable square is an electronic device that helps to accurately draw perfect 90-degree angles. It features a stable metal frame construction, a flip flop milled measuring scale, and an adjustable vial that allows for precise angle adjustments. The Wolfcraft 6921000 has all of the features required for professional-quality work, such as adjustable measurement possibilities, automatic hold function, and intuitive adjustment. It is a versatile device that can be used for any woodworking task involving angles, and is ideal for making cabinetry, doors, windows, shelves, and more.