Hitachi NV50AP2 2-Inch Plastic and Metal Cap Nailer (Discontinued by Manufacturer) Drives nail and Plasti-Top or Round-Top in tandem for rapid firing Speeds up applications such as attaching house wrap, roofing felt, insulation board and built-up, modified or single-ply roof decks for a much faster construction process Up to 60 percent faster than hand nailing for more productivity Drives 350 cap fasteners per coil for less downtime Up to 10 times more holding power than staples for extended jobs