MAX High Pressure Nailing Machine HN-90N6(D) N50 to N90, CN50 to CN90, Steel Plates 45 to 75, Concrete 45 to 65 The 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 (328 x 126 x 324 mm) Accessories: Protective glasses, oil strainer, carrying case.