89221-371-000 Hex Wrench (6mm) - Overview. The 89221-371-000 Hex Wrench is a specialized 6mm hexagonal tool designed to support Honda marine engine systems and rigging components. This essential tool plays a critical role in maintenance and repair tasks, ensuring secure and reliable fastening of hex screws in your equipment. Its precise design guarantees seamless integration with the marine rigging system, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda hex wrenc