Lumberjack Tools   TTA3000  Tools Industrial Series 3-inch Tenon Cutter Ergonomically designed, lightweight, safe and easy to use Cuts a 3" diameter tenon with a 60 tapered shoulder profile Designed to run on a heavy duty 3/4", single speed, high torque, low rpm (450 or less) corded drill Great for professionals, contractors, craftspeople, those who prefer the tapered shoulder style and those who need a larger log capacity Features Lumberjack Tools exclusive in-sight measurement system Proudly designed and made in USA