- For Alumunium, Steel, Stainless Steel Size ( 2.4, 3.2, 4.0, 4.8 MM).- Alumunium Body With CR-MO Handle makes our riverter light weight.- CR-MO jaws makes it possible to set stainless steel rivets up to 4.8 mm.- Include 4 piece of heat treated nose pieces ( 2.4, 3.2, 4.0, 4.8 MM)