High speed valve technology drives over 10 nails per second. High lifetime engine seals and feed system for durability and long life. Depth adjust wheel with numbered detents helps drive nails to the proper depth into a variety of materials. Ergonomic design is lighter (4.5 lbs) than leading competitive coil roofing nailers. Steel skid plates with rubber inserts protect the tool and help to stop it from sliding. Operating pressure: 70-120 psi. Overmold grip. Fixed exhaust.