General Tools Precision Drill Guide is designed to drill accurate right-angled or variable-angled holes with ease, featuring a built-in protractor scale that adjusts up to a 45-degree angle. This versatile tool includes a built-in depth stop and a slide lock, making it suitable for sanding and buffing applications as well. The V-groove allows for precise positioning of round stock, pipe, or tubing, enhancing its functionality. Compatible with 3/8" and 1/2" portable electric drills, this drill guide also comes with a chuck and chuck key for added convenience. It is an essential tool for anyone needing precise drilling at various angles. Model Number: 36/37