General description This is a high-quality, professional-grade deep crank ring spanner designed for durability and precision. Made from chrome vanadium steel, it is hardened, tempered, and chrome plated to resist corrosion. The tool features accurately broached ring ends with chamfered bi-hexagon profiles for easy nut engagement. The ring ends are offset at a 45-degree angle to facilitate access in tight spaces. Suitable for various mechanical and DIY applications, it offers reliable performance and long-lasting use. Technical specifications Material: Chrome vanadium steel Finish: Chrome plated for corrosion resistance Size: 6mm x 7mm Type: Deep crank ring spanner Manufactured according to DIN 838 / ISO 3318 standards Compatibility and accessories Compatible with nuts and bolts that match the 6mm and 7mm sizes Designed for use with standard socket sets and hand tools Installation No installation required; this is a hand tool used directly for tightening or loosening nuts and bolts