1.Tensile stainless steel and aluminum rivet,labor-saving 2.Used for rivet joining metals,fibers,leathers and plastice SINGLE PULL RIVET GUN1.Tensile stainless steel and aluminum rivet, labor-saving2.Used for rivet joining metals,fibers,leathers and plastice3. Workable with rivet of 2.4mm,3.2mm,4.0mm,4.8mm SINGLE PULL RIVET GUN