Lumberjack Tools 3-Piece Home Series Master Kit (HSK3) Ergonomically designed, lightweight, safe and easy to use Cuts a 1", 1 1/2" or 2" diameter tenon with a radius shoulder profile Designed to run on a heavy duty 1/2", single speed, high torque, low rpm (500 or less) corded drill Great for hobbyists, home owners and crafts persons Proudly designed and made in USA