This heavy duty 35,000 rpm drill control box is used in all kinds of manufacturing process. If the system is turned on with no bur inserted in the drill, "Over-Current Protection Circuitry" will stop the drill and produce an audible alarm. Durability and electronics ensure years of service, and allow us to provide a 2 year motor warranty on the DuraPro 2. The control box comes with a forward/reverse switch. This is the control box only.