This combination wrench is made of heat-treated chrome vanadium steel (CR-V Steel) with a hardness of HRC48-50, strong toughness, sturdy and durable. The surface is polished and chrome-plated, with excellent anti-rust performance, effectively preventing oxidation and corrosion, ensuring long-lasting durability.The open-end wrench features a 15-degree offset, providing additional working range when working in confined spaces. Each rotation allows for reversal, allowing the fastener to engage twice. Off-corner design distributes force around the round rather than corner, extending life and protecting fasteners.
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