[Professional Industrial Nailer] Equipped with a 360° adjustable back cover exhaust port allows you to control the exhaust direction for greater convenience while working. [Compatible Fasteners] Compatible with 12 Gauge 1/2-Inch to 1-Inch Plastic Collated Concrete and Steel Drive Pins [Applications] Ideal for concrete ceiling frame, trunk hydropower, doors, windows & ceiling installing, fixing drywall track and other wood to concrete or steel to concrete nailing, etc. [Extra Gift] Buy now to free get 1 Box (1,000 PCS) 12 Gauge 7/8 Inch X .109 Inch Mechanical Galvanized Smooth Shank Plastic Collated Concrete and Steel Drive Pins [Comfortable Grip] Designed to be user-friendly, its comfortable rubber grip can reduce vibration and fatigue and increase productivity.