ACCURATE SQUARING: Efficiently square rounded corners on hinge recesses with a single hammer blow. Spring-loaded HSS anvil for precision cuts. MULTI-PURPOSE: Ideal for squaring hinge recesses in door frames and door edges, as well as lock faceplates. EASY TO USE: Lightweight aluminum body design makes it easy to use and handle. One operation - functions with a common hammer. LONG-LASTING: The HSS anvil can be resharpened for continued use, making it a reliable tool for any workshop. DIMENSIONS: 1.2 x 0.4 x 2.8 inches. Can be used with Trend Hinge Jig for even more versatility.