Cut perfect ovals every time! This disc cutter features 2 punches , in sizes 1 5/8 x 1 1/8 and 2 x 1 3/8 inch these are approximates. The tool's holes have been machined and honed to make fine, clean cuts. The punches are oil-quenched tool steel that have been drawn for hardness and durability. The base is case-hardened and ground. You can cut soft sheet up to 20ga.