Drives 16-Gauge 7/16-inch crown staples from 3/4-inch to 2-inch in length Sturdy tool with very powerful driving force; Magnesium casted body for light weight Toggle switch allows for either sequential or contact fire mode Tool-free depth adjustment for proper setting of nail heads; Quick jam release mechanism for easy nail removal 360° air exhaust keeps contaminates away from the user's face and work; No-mar tip protects the work surface from damage