Nippers & Snips by Wiss. Details:Crescent Wiss has taken the Aviation Snip to the next level with the advanced MetalMaster Aviation Snips. The precision-cast molybdenum blades have CNC-ground serrations which allow for more uniform serrations that provide a cleaner cut every time. They feature extended pivot bolt life due to the superior free-float design. The spring-action design allows for fast, effortless feed. The all-new latch design provides ergonomic single-handed operation for left or right handed users. New extended non-slip handle grips give users better control while cutting. The new generation of Crescent Wiss MetalMaster will cut over 8 miles of steel and feature up to 10 times longer cut life than traditional Aviation Snips. They are available in left/straight cut, right/straight cut, and straight cut.