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. Slotting cutters create a small slot in your project for various uses. Model 6700A: 5/16" bore, 0.062" cutting length, 3 wing.