Cut cleanly through the thin optical fibers found in fiber optic cable, including those protected by Kevlar, without building up electrostatic discharge (ESD). Made of tungsten carbide, the blades on these cutters are the hardest, longest lasting ones in our wire cutter offering. To prevent damage to sensitive components, the grips drain static away from the blades. The spring-assisted jaws open automatically when you release the handles. Also known as diagonal-cutting pliers.