2 Flute Super Rabbeting Bit with ball bearing guides. An ingenious rabbeting bit that will enable rabbet cuts from 1/16" through 3/4" in 1/16" increments, and five undersized plywood sizes, using optional collars. Particularly useful when working with large stock or when a precise rabbet depth is required. The basic tool is supplied with a 2" diameter rabbet bit, hex key, instructions and all necessary parts for 5/8" and 3/4" depth rabbets.