DEWALT DWFP12231 Pneumatic 18-Gauge 2-Inch Brad Nailer Kit Long life maintenance-free motor to keep from staining the work surface Tool-free depth-of-drive adjustment with detents for proper setting of nail heads Tool-free jam release mechanism for easy nail removal Rear exhaust to keep contaminates away from work Drives 18 gauge nails from 5/8" to 2" length. Power Source: Pneumatic. Power Tool Type: Pneumatic