B3 BENCH MODEL complete with 2 HP 220 volt, variable speed, DC motor with Nema 12 control, HD arm, serrated rubber 8? x 2? wheel with bearing hub and flanges, Adapter arm with Fork tip and 1/2?, 3/4?, or 1? dia x 2? wide wheel, 6? and 3? diameter drive pulleys to yields belt speeds of 5800 or 2800 SFPM. (Pulleys to yield other speeds from 1000 to 8000 SFPM may be substituted for standard sizes or purchased separately.