This heavy duty single hand riveter comes with FOUR interchangeable nozzles. Ideal for sheet metal, aluminium, steel, stainless steel and other applications. Strong steel construction with comfortable ergonomically designed shock proof grips. The sizes of the interchangeable heads are 2.4mm, 3.2mm, 4.0mm and 4.8mm. The stroke length can be adjusted by hand with no need for any tools. Shockproof handle design to eliminate excess vibration. The differtent material compatibility are as follows: Aluminium: 2.4mm (3/32), 3.2mm (1/8), 4.0mm (5/32), 4.8mm (3/16). Steel: 2.4mm (3/32), 3.2mm (1/8), 4.0mm (5/32). Stainless Steel: 2.4mm (3/32), 3.2mm (1/8), 4.0mm (5/32).