For processing steel, non-ferrous metals, glass, ceramics, wood, and plastic. For cutting, roughing, grinding, and finishing. Infinitely variable electronic speed control for high torque even at low speed ranges. Complete with grinding disc made of corundum (K 60), flap grinding disc (K 100), and cutting disc (fabric reinforced). (without battery and charger), complete set see item 28 815. Material: housing: fiberglass reinforced polyamide, gear head: aluminum die-cast. With gear head made of aluminum die-cast for precise ball bearing fits. Equipped with a balanced DC special motor, powerful, quiet, and durable. Infinitely variable electronic speed control for high torque even at low speed ranges.