The Draper Ergo Plus XP1000 VDE Plain Slot Screwdriver has a patented dual-layer insulated sheath, which makes any damage highly visible. It is individually tested to 10, 000V and is suitable for use on 1, 000V AC and 1, 500V DC live circuits. The ergonomic soft-grip bi-material handle allows free spinning in the palm of your hand to quickly tighten screws, but also allows transfer of torque when needed, designed with flat sides to prevent them from rolling. SCVM steel blades are hardened, tempered and chemically blackened with a precision-machined tip for an exact fit to prevent screw damage.