General description This Draper TX-STAR 4-Piece 1/2" Square Drive Socket Bit Set (Model 16331) features high-quality TX-STAR socket bits designed for both professional and DIY use. Each bit is 100mm long and made from hardened and tempered chrome vanadium steel, ensuring durability and strength. The bits have sand-blasted tips made of S2 silicon steel for improved grip and precision, and they are supplied on a steel retaining rail for easy organization and storage. These socket bits are suitable for various tools and applications requiring TX-STAR drive types. Technical specifications Number of pieces: 4 Drive type: TX-STAR (Torx) Bit sizes: T40, T45, T55, T70 Length of each bit: 100mm Material: Hardened and tempered chrome vanadium steel Tip material: S2 silicon steel with sand-blasted finish Compatibility and accessories Compatible with tools that accept 1/2" square drive sockets Supplied with a steel socket retaining rail for organization Installation Insert the socket bits into