This USED TP-1934 is for professional installation of handles and knobs. Works on door and drawer fronts. An invaluable tool for any cabinet installer. Simply slide guides and stop along English/Metric rulers, tighten thumb screws and drill. The TP-1934 Cabinet Hardware Jig is the core unit of the complete drilling system (TP-1935 Cabinet Hardware Jig and Long Hardware Extensions). Locates hardware holes of any dimension on door and drawer fronts up to 12″ C-C. Includes standard 5MM drill bit (approx. 3/16-Inch). Durable lightweight aluminum with case hardened steel bushings. Made in USA. Install Hardware 10x Faster The fastest and most accurate hardware tool on the market. Saves wasted time making wood templates Durable aircraft quality aluminum 5mm case hardened steel bushings are replaceable MADE IN USA