WORKPRO 9PC Long Arm Hex Key Set (SAE) delivers essential fastening solutions in imperial measurements. Crafted from chrome vanadium steel, these keys withstand repetitive use and high torque applications without permanent deformation or wear. The extended arm length accesses recessed hex fasteners in confined spaces and deep cavities, improving efficiency on complex assembly and maintenance tasks. This focused nine-piece SAE collection provides the core sizes needed by mechanics and technicians, offering durability and precision in a compact, professional-grade toolkit.