Available in a range of lengths, these 3/8" square drive extension bars are designed to allow the user to access fasteners in awkward or confined spaces. All bars are manufactured from high quality chrome vanadium steel and are finished with a fully polished finish. All with knurled 'finger grip' for control. Features and Benefits Manufactured from a high quality chrome vanadium steel for durability and overall extended tool life Fully polished finish repels dirt and makes for easy cleaning Knurled finger grip improves control and reduces the risk of slippage when using Available in a variety of sizes to allow you to select the product that best suits your needs Typical Applications Construction Plumbing Engineering