General description This double-ended universal Torx wrench is designed for versatility, accommodating standard sizes from 5/16 inch to 7/8 inch and metric sizes from 8 mm to 22 mm for nuts and bolts. It effectively meets various repair needs across different applications. Technical specifications Material: Chrome vanadium steel Hardness: Up to HRC60 Size range: 5/16 inch to 7/8 inch and 8 mm to 22 mm Usage Suitable for household repairs Applicable in mechanical engineering Ideal for machine and auto repair Can disassemble various sizes of screws and nuts Other information Labor-saving design with an ultra-long handle for increased torque Ergonomically designed for comfort during prolonged use Rust-proof due to overall heat treatment and polished electroplating