The Porter Cable 1-3/4 in. Coil Roofing Nailer is designed for durability, convenience and safety. It features a quick, adjustable nail tray with 2 feed pawls for reliable nail feed. It fastens a full bundle of shingles without reloading and has an internal piston catch mechanism that delivers consistent power on every shot. It sets nails properly every time with a tool-free depth of drive with detents and has steel skid plates with dual rubber inserts for protection and grip. The compact design makes it easy to carry to the work site.