The Wiha Tools SoftFinish Multi-Drivers, Nos. 77890 and 77891, feature a dual durometer cushion grip handle for comfort, control, and long-lasting durability. They have four-sided parallel flats to prevent tabletop roll-off and a secure interchangeable bit and nut driver receiver system for multi-tool adaptivity. The 6inOne SoftFinish Multi-Drivers, No. 77890, include four screwdriver and two nut driver tip profiles. The 11inOne SoftFinish Multi-Drivers, No. 77891, has eight screwdriver and three nut driver tip profiles. Both consist of premium quality tool steel engineered for strength and durability that feature exact fit precision machined tips to reduce cam-out of fastener heads.