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• The body is forged from Cr-V, with a surface electroplated in matte chromium and precision-polished heads.• The jaw opening range is enlarged, featuring laser-engraved scales for diameter indication.• Subjected to overall heat treatment, achieving torque standards compliant with American specifications.• Equipped with a cold-rolled worm gear for precise operation and a smooth feel.• Added functionality of a plum wrench at the tail end.
