The Porter-Cable RN175A is a Factory Reconditioned 7/8 inches to 1-3/4 inches Coil Roofing Nailer with a collated clipped head and nail length specifications to meet the roofing and nailing demands of any project. The new rounded body style offers increased comfort and the overall design has doubled the life of tool. The RN175A has a new rubber grip for increased ergonomics and aesthetics. This roofing nailer also has a selectable trigger that works in either restrictive or contact mode, which does not require any tools or other mechanism to switch from restrictive to contact mode. The Porter-Cable RN175A uses 15° 3/4 inches to 1-3/4 inches wire collated roofing nails.