The Sealey 8 Piece 3/8" Drive Impact Spline Socket Bit Set is a professional-grade socket set designed for demanding fastening applications. Manufactured from hardened and tempered Chrome Molybdenum steel, this versatile set provides exceptional durability and resistance to wear in workshop and site environments. The manganese phosphate finish delivers reliable corrosion resistance, ensuring long-term performance even in challenging conditions. Each 3/8" square drive impact spline socket bit is engineered to withstand the high torque forces typical of impact driver use, making this set particularly suitable for automotive work, machinery maintenance, and general engineering tasks. The inclusion of a locking 1/2" square drive quick change adaptor enhances versatility, allowing seamless integration with power tools and impact wrenches. The comprehensive size range from M6 through to M18 covers the most commonly encountered metric spline fasteners, reducing the need for multiple socket se