Klein Tools, Inc. Hex Key, L-Style Long Arm, 5/16, 6.313; Af Size Metric Klein Tools LL20

The Klein Tools Long Arm Hex Key, 5/16-Inch (Catalog No. LL20) is constructed from high-quality alloy steel that has been heat-treated and tempered for enhanced strength and durability. The long arm measures 6.313 inches (16 cm), providing access to hard-to-reach areas, while the short arm, at 1.563 inches (4 cm), is designed for applications requiring higher torque in confined spaces. The tool weighs 2.9 ounces (82 g), making it lightweight and easy to handle. This hex key is suitable for various fastening tasks where a 5/16-inch hex size is required.