Palmgren 9682102 bench 3 phase grinder w/wheel guards & dust collection ports, 10″ wheel dia palmgren’s bench grinders are designed and built with high-quality motors for heavy duty use and long duty cycles. Our stated horsepower is actual sustained horsepower under 100% loads with less than 1% loss from stated rpm’s at the same 100% loads. Designed to do more, a palmgren bench grinder provides you with 4 to 7 times longer duty cycles under load and 8 times less speed degradation than any other competitor.