A device intended to connect to a surgical power tool system motor [it is locked and held in a collet or quick coupling and not simply gripped in a drill chuck (Jacobs chuck)] to convert the non-dedicated mechanical energy provided by the motor to a dedicated mechanical motion to perform a drilling function when an appropriate drill bit is inserted. The oscillating drilling movement prevents tissues and nerves from being wrapped around the drill bit during bone surgery. It may include integral design features, e.g., have an angled head or have an extended body length. The device may be of the micro or macro design. This is a reusable device.