General description This 13Pcs Star Torx Bit Socket Set includes a comprehensive selection of sizes suitable for various applications. It features 7 types of 1/4 inch Drive (T8, T10, T15, T20, T25, T27, T30), 5 types of 3/8 inch Drive (T40, T45, T50, T55, T60), and 1 type of 1/2 inch Drive (T70), making it ideal for use on bikes, automobiles, appliances, lawn equipment, and machinery. Technical specifications Material: Alloy steel Drive sizes: 1/4 inch (6.35mm), 3/8 inch (10mm), 1/2 inch (12.6mm) Length of sockets: T8-T30: 37mm; T40-T60: 48mm; T70: 55mm Measurement allowed error: +/- 1-3cm Easy Storage This set comes in a plastic storage case with dedicated slots for each bit socket, ensuring all pieces are neatly contained for easy transportation, safe storage, and quick organization. Please note that the color and style of the plastic box are random and cannot be specified. Usage To use the bit socket set, select the corresponding model based on your needs, install it on a manual