Century single phase motor, type SP- H.P. 1/6, volts 110, cycles 60 RPM. Mounted on old board that was bolted to our old workbench (workbench not included). Metal catch tray attached for grinding and heavy duty grinder with two grinding stones powered by motor included. Electrical switch installed to unit. Just plug into 110 outlet, ready to work for you. Antique unit. Been stored in barn. Cash only. You pick up.