Klenk® Serrationless Aviation Snips Smooth Cut – Non-serrated Blade Get the extra leverage and cutting power of a compound-action aviation snip with the smooth cut of a traditional pattern snip. Klenk’s new smooth, non-serrated blade leaves no teeth marks in the metal. Now available in right-cut, left-cut, and straight-cut models! An Essential Tool for Architectural Metalwork Perfect for architectural metals — copper, brass and pre-coated metals — where a smooth cut edge is needed. Also recommended for zinc metals, which are used extensively in the building industry in roofing, flashing and weatherproofing applications.