M3R STRAIGHT CUT AVIATION TIN SNIPS | The most popular professional snips in the world, Wiss aviation snips multiply hand force 5X. CNC-serrated blades hold and aggressively cut material, while the self-opening spring action delivers a smooth, low-effort feed and non-slip cushion grips provide excellent control. Tough molybdenum steel blades have exceptional durability and long-lasting blade life. Cuts up to 18 ga carbon steel.