The Steelman Hex Key Wrench Combo Set features 26 of the most common metric and standard sizes used to remove and install socket/allen headed fasteners on all of your home, automotive, and hobby projects. These wrenches are made with high-strength, heat-treated chrome vanadium steel which is then coated with a protective black oxide finish. Each wrench has burr-free chamfered ends to make it easier to insert the tool into hex cap screws, bolts, and fasteners and their extended length driver shafts make it easy to reach into hard-to-access spaces. Their double-ended design allows you to choose between long reach and high torque for the job at hand. The hinged storage cases are color-coded and clearly labeled, making it easy to decide which type, metric or standard, and size of wrench you need.