The Lumberjack Tools Pro Series TTR1000 1-Inch Dual Blade Tenon Cutter cuts a 1-Inch diameter tenon with a radius shoulder on the end of a log or material of your choice up to 2-1/2-Inch. The Lumberjack Tools TTR1000 is designed to run on a 1/2-Inch corded drill or a cordless drill (minimum 18-Volt). Features of the Lumberjack Tools TTR1000 are: ergonomically designed aircraft grade aluminum body, removable/re-sharpen able hardened steel dual cutting blades and our patent pending In-Sight measurement system for quickly measuring the tenon length while cutting. Using the Lumberjack Tools TTR1000 to build your indoor or outdoor rustic furniture projects is easy, fast, safe and efficient.