The Irwin Industrial Tool Company HEX KEY 9/16 SHORT ARM 5/ is designed for precision and durability. This hex key features a 9/16 inch size, perfect for a variety of fastening applications. Made from high-quality steel, it ensures long-lasting performance and resistance to wear. The short arm design allows for easy maneuverability in tight spaces, making it ideal for both professional and DIY projects. Its compact size and lightweight construction enhance portability, while the black oxide finish provides added corrosion resistance. This tool is a must-have for any toolbox, ensuring you have the right tool for hex fasteners.