This coil roofing nailer has a durable aluminum housing and a one door loading system for fast reloading. It has a dry fire lock out to prevent dry firing and to alert the user to reload the magazine. Depend on this coil roofing nailer for durability and comfort. Fastener Range: 3/4 in. - 1-3/4 in.Full round river for more consistent drive quality15 Degree Coil Nails70-120 PSI7 year limited warranyPatented single action side load canister410 in. per pound of driving energy for the hardest of applicationsQuick set adjustable depth control for consistent nail drivesOver molded grip for comfortable useShingle guide that requires no tools to adjust for fast layouts