The TSM-21 cuts the patented 6 degree Castle Pocket. Highly useful for everything from drawer box assembly to face frame construction. The TSM-21 clamps the stock, routs a pocket, and drills a pilot hole with a tap of the foot pedal. The Castle Pocket is free of splinters and sawdust so the material is ready for construction. The TSM-21 is extremely durable and designed for use by professional woodworkers.