MAX High Pressure Nailing Machine HN-75N4(D) N50 to N75, CN50 to CN75, Steel Plates 38 to 75, Concrete 38 to 65. Pressure switching lever allows you to easily change the air pressure inside the nailer. The continuous hit is low recoil to prevent fatigue and speedy performance. Size: 12.0 x 4.9 x 12.8 inches (304 x 126 x 324 mm) Accessories: Protective glasses, oil strainer, carrying case.