The Wiha Tools 11inOne Multi-Driver features ergonomic cushion grip handles for comfort and control, dual durometer construction for long-lasting durability, parallel flats to prevent table-top roll-off, and offers an interchangeable bit and nut driver receiver system for multi-tool adaptivity. It includes eight essential screwdriver and three nut driver tip profiles for efficient tool carry. The driver assembly offers ideal quality tool steel with exact fit precision machined tips for reduced fastener damage. Tip profiles include: nut driver (1/4", 5/16", 3/8"), Phillips (#1, #2), slotted (1/4", 3/16"), square (#1, #2), and Torx (T20, T25).