General description Sealey AK65601 Premier Lock-On™ Hex Socket Bit Set is designed for professional use, featuring a comprehensive range of tools suitable for daily tasks. This 8-piece set includes professional heat-treated Chrome Vanadium steel sockets and S2 Steel hex bits with a zinc phosphate finish, ensuring durability and performance. Technical specifications Material: Chrome Vanadium steel Hex bit material: S2 Steel Finish: Zinc phosphate Sizes: 3, 4, 5, 6, 7, 8, 9, 10mm Model No.: AK65601 Usage Effectively removes rusted, damaged, and severely rounded hex head fasteners. Patented twist design grips tighter as they turn, preventing fasteners from rounding. Other information Supplied on a metal socket rail. Lifetime guarantee*