Description This is a professional-quality deep crank imperial ring spanner designed for durability and precision. It features a long series construction made from hardened, tempered, and chrome-plated chrome vanadium steel for corrosion resistance. The ring ends are accurately broached with chamfered bi-hexagon profiles to facilitate easy nut engagement and are offset at 45 degrees for better access in tight spaces. Suitable for various DIY and home improvement tasks, it provides reliable performance and ease of use. Specifications Size: 15/16 inch x 1 inch Material: Chrome vanadium steel Finish: Chrome plated for corrosion protection Manufacturing standards: DIN 838 / ISO 3318 Compatibility and Accessories Compatible with standard nuts and bolts requiring 15/16 inch or 1 inch sizes Sold individually; no additional accessories included Installation No installation required; this is a hand tool used directly on fasteners Usage Use the ring end to tighten or loosen nuts and bolts