12" Professional Bolt Cutter Plier Jaws are Made of T8 Alloy Steel and are Heat-Treated, which gives High Hardness and Shear Sharp. Cutting Edge quenched with High Temperature which makes it Shear Strong, not damaged, Sharp and Durable. TPR Handle, Ergonomic Design, Comfortable Feel. The surface printed with the brand logo words, highlight the charm of the brand and style. The front and back of cutting edge fixed with 2 screws, more powerful and stability for safe on operation.