DeWALT Heavy-Duty 3/4" - 1-3/4" Coil Roofing Nailer...Lightweight (4.9 lb) tool with a magnesium housing provides enhanced maneuverability and aids in minimizing user fatigue; Produces a cycle rate that works as fast as you do; Delivers the power to consistently drive nails in the toughest applications; Tool-free depth adjustment assists in locating the perfect depth setting for precise nail penetration; Convenient side-load canister design allows for quick and easy nail loading; Carbide inserts in contact trip foot protect against premature wear; Pneumatic-bias feed piston provides consistent nail feed as pressure fluctuates, minimizing skipping and jamming; Integrated jam clearing nose door eliminates down-time from bent fasteners caught in the nose piece; Piston catch design allow for a consistent drive in every shot; Double O-ring feed piston design provides protection against excessive feed piston wear; Replaceable anti-skid pads aid in preventing the tool from sliding off the roof; Nail height adjustment lever allows for quick and easy adjustments; Hinged feed piston cover allows for quick and easy cleaning of feed piston area; Trigger lock-off allows trigger to be disabled when not in use.