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General description This is a professional-quality deep crank ring spanner designed for precise and efficient nut tightening and loosening. It features a long handle for better leverage and access to hard-to-reach areas. Made from durable chrome vanadium steel, it offers high strength and corrosion resistance. Technical specifications Size: 7/16 inch x 1/2 inch Material: Chrome vanadium steel Finish: Chrome plated for corrosion protection Standards: Manufactured according to DIN 838 / ISO 3318 specifications Design: Offset at 45° with accurately broached ring ends featuring chamfered bi-hexagon profiles Compatibility and accessories Compatible with nuts and bolts of sizes 7/16 inch and 1/2 inch Sold individually; no additional accessories included Installation No installation required; simply select the appropriate size and use as needed. Usage Use for tightening or loosening nuts and bolts in automotive, plumbing, or general maintenance tasks. Designed for professional use, providing