The patented 4 Wheel DC Brushless Variable Speed Power Feeder is the most innovative 4 wheel stock feeder in the world and is commonly used on Shapers, Table Saws, and Jointers. Features 1. DC Brushless Servo Motor Experience equivalent torque as 1HP AC motor feeders thanks to a powerful 2/3HP brushless servo motor while saving up to 70% in energy costs. 2. Variable Speed & Digital Controls No more changing out gears. Easily identify your feed rate and change the speed with the turn of a button at 1 fpm increments until you reach your desired speed from 5-72 fpm 3. 90° Instant Memo Locking Swivel Adjustment Swivel the power feeder and lock it in instantly - perpendicular or parallel to the fence with the memo -locking feature not found on standard stock feeders.