Shearing capacity question

Looking to buy a small hobby brake and shear and I want to reasonably ensure that it has the shearing capacity that I am looking for. The brake is a Kaka Industrial brand 8" mini shear and brake. The best stats I can get on it are: Maximum Cutting and Bending Length: 7-7/8” Aluminum: 1.2mm/18Gauge Copper: 1.0mm/20Guage Circuit Board: 1.5mm/16Gauge Tinplate Sheet Metal: 1.0mm/20Gauge Brass: 1.0mm/20Gauge Unfortunately it does not list the limits of stainless steel. I am wanting to have a reasonable guestimate as to how capable it would be of shearing: 0.008" THICK ALLOY 302 FULL HARD TEMPER STAINLESS STEEL (18/8 CHROME-NICKEL) HARDNESS: ROCKWELL C 40-45 The main reason I ask is that I was processing plain steel stock with a utility knife and then sanding the edges. The finished product was very adequate. When I went to try the same process on SS, it told my utility knife to pound sand. I am convinced that the way to go is to use a brake and shear! Thank you!