Great for flooring and framing, truss build-up, window build-up, sub flooring, roof decking, wall sheathing and housing construction. The NR9AE(S1) weighs only 7.5 Lbs., making it easy to use all day, while still providing the power of bulkier, heavier nailers. Weighing only 7.5 lbs, it is easy to use all day. The newly redesigned head guard allows for a faster and easier disassembly process, saving you valuable time during tool maintenance. APPLICATIONS: Great for flooring and framing, window build-up, sub flooring, roof decking and housing construction LIGHTWEIGHT: At only 7. 5 lbs and well-balanced allowing for ease of maneuverability and less user fatigue FASTENERS: Accepts 2-in up to 3-1/2-in plastic collated framing nails TOOL-LESS DEPTH ADJUSTMENT: Depth adjustment to countersink or flush drive into a variety of materials SELECTIVE ACTUATION: Allows for quick changes between sequential and contact nailing with the flip of a switch