In 1970, the Whiteside Machine Company began manufacturing special parts and making repairs for the furniture industry in Hickory, NC. As the company's reputation grew, they expended their operations to include product offerings for businesses and hobbists, including high-quality router bits. Today, Whiteside router bits are the undisputed favorite among woodworkers. This door edge bit is used to create the inside and outside edges of a recessed door cut style cabinet door. Model 6010: 1-3/8" large diameter, 1-1/8" cutting length, 1/2" shank, 2 flutes.