Metal working machines, namely, metal polishing, sawing, beating, drilling, planing, chipping, grinding, milling and sanding machines and power-driven hand-held tools, namely, pneumatic hammers, grinders, sanders, electric drills, electric hammers, screwdrivers, nut runners, polishers and wrenches; Wood working machines, namely, wood polishing, sawing, beating, drilling, planing, chipping, grinding, milling and sanding machines; Stone working machines, namely, stone polishing, sawing, beating, drilling, planing, chipping, grinding, milling and sanding machines