Available with air motors or electric motors, 1000 Series can be equipped to have proof of return signal provided by drill itself. DC motors are also available, which have adjustable rpm rate for optimal accuracy. Measuring 12 x 4 x 4 in., series is rated for use on woods, plastics, metals, and various other materials. It can be used in combinations for complex patterns or production drilling operations where multiple spindle drilling heads are not appropriate.