The Hitachi NV65AH2 proved itself to be an excellent tool based on its size, weight, and reliable performance. It includes many features that improve safety and ease of use while filling the needed space between roofing nailer and framing nailer. Since reviewing the Hitachi’s 8-gallon gas-powered wheelbarrow air compressor, I felt a heavy desire to hook it up to and review the new Hitachi 2-1/2-Inch Coil Siding Nailer immediately afterward. Testing all these great tools is a tough job, but someone has to do it! This nailer is among a fleet of new tools Hitachi recently introduced, many of which have been favorably reviewed, so I had high expectations. I also had a house to build, so it was imperative to have a reliable nailer. This 70-120 PSI gun is compact and light at 4.8 pounds (empty) and I could tell right away that it would be a welcome change from the bigger, heavier framing nailer that I often use for siding. Its side-loading magazine accepts up to three hundred 1-1/2 to 2-1/2-inch collated nails from 0.9 to 0.099-inch diameter and features a plastic shield to protected the user from the spent collation wire that sometimes flies off during the drive. Other features that ...