Cuts thick materials or multiple layers， seams， etc. and makes notch cuts. Can be used in either hand. Drop-forged molybdenum alloy steel for maximum strength. 8:1 Compound Action for maximum cutting power with minimum effort. Custom heat-treated blades precision machined to last longer. 40 serrations per inch for non-scarring grip on material. Superior grade 8 pivot bolt. Long lasting double overwind spring. High tensile steel handles. Grips designed for durability and comfort.