The MAX PUNCH® Cutter for 1 1/4" Stainless Steel dies is made for heavy duty cutting. The MPK0125PRO cuts through 10 gauge stainless steel, aluminum, fiberglass and plastic. Features a smoother cut, and will not bow panel or leave jagged edges. This cutter has a unique 3-point cutting surface, providing a cleaner, quicker and easier cut. Works with most widely used knockout tools.