Unique engine design generates power to bury nails in both standard framing lumber and engineered lumber with minimal recoil * Minimized air consumption (20 percent less) and sufficent power to sink a 3 1/2-inch by .131-inch nail into engineered lumber * Nail tray pulls out for easy nail loading and has easy push button for nail size adjustment * Robust motor design that includes a piston catch to provide consistent maximum power in every shot * Tool-free adjustable depth allows for quick and easy depth of drive setting; An overmolded rubber handle allows for a comfortable and controlled operation of the tool