Extra Hard Nut Driver Set, 6 Piece - 

Universal Use - The Extra Hard Nut Setter is a good choice for universal use. All tasks are achievable thanks to the bit´s S2 Modified Steel and an optimised heat-treatment process resulting in extra-hard quality, enabling adequate performance in various tasks. Additionally, a permanent magnet secures a hold on screws and prevents slippage. Intended for universal screw-driving with screwdrivers and drill drivers. Hex shank for maximum power transfer in standard three-jaw drills and hexagonal drill driver chucks.