The KAL 5/8" x 11/16" Open End Wrench, part number 4031, is a high-quality hand tool designed for automotive use. This single item wrench features a classic open-end design, making it easy to adjust and reach tight spaces. Manufactured in Japan, this SAE system of measurement wrench is a reliable tool for maintenance and repair tasks. With its durable construction and precise size, this KAL wrench is a valuable addition to any toolbox.