Premium steel blades with a precision-machines tip for an exact fit to prevent screw damage. The ergonomic soft grip bi-material handle for free spinning in the palm of your hand. Each screwdriver has clear markings to easily identify head type and size Tested to 10,000V, suitable for working on live circuits of 1,000V AC and 1,500V DC Designed with you in mind, each screwdriver has been designed with flat sides to prevent rolling off surfaces . With a loop through hole allows for a lanyard or wrist strap to be attached, ensuring working from a height can be done safely Patent dual-layer insulation sheath that can highlight any visible damage Slimline format, ideal for working in hard to reach places like switchboards or terminals