Manufactured from a high-quality chrome vanadium steel, this range of 1/2" square drive standard extension bars is suited for a range of professional applications. Completed by a fully polished finish, the products also boast a knurled 'finger grip' for user comfort and control when using. Features and Benefits • Manufactured from chrome vanadium steel for durability • Fully polished finish repels dirt and prevents grime from adhering to the tool for easy cleaning • Available in a range of sizes to suit individual needs • Knurled 'finger-grip' allows for heightened control and grip when using Typical Applications • Automotive • Engineering • DIY • Plumbing