The Lumberjack Tools Home tenon cutters are ergonomically designed and feature a Radius Shoulder profile (low profile) that offers a more refined look. The tools are Safe, Fast And Easy to Use to use and the tenon cutter Works Like a Giant Pencil Sharpener. Build your own log beds, log railings, log fences, log tables, log chairs, log arbors, log benches And more! A 1/2" heavy duty drill is recommended for use (Specs: Pipe handle drill, single-speed, 450 RPM's or less). Tenon cutters are backed by Lumberjack Tools Lifetime . Home Tenon Cutters are die cast from automotive grade aluminum and feature dual blade technology to cut tenons quickly and efficiently. Accepts a log from 2-1/2" - 3-1/2" in diameter. Includes: 2" Tenon Cutter, (1) Set of Blades (Includes (2) blades, (2) button screws, (1) Allen wrench) And (1) Manual. Made in the USA