The power feeder, also known as a stock feeder, is designed to feed stock across a cutter while keeping your hands and fingers out of harm's way. Power feeder's can be attached to a shaper or table saw; two machines that can be dangerous if not used correctly. The stock feeder is simply the best safety device you can attach to these tools. Not only do power feeders keep your hands away from the cutting area but they also provide accurate positioning, feeding and control of the stock as it is fed into the cutter. Tools-Plus.com sells some of the highest quality Power Feeders from Powermatic.