• Unique hex opening on each end so that a single socket can accommodate two hex sizes. Thin wall design to fit most recessed wheel nuts. Features include: 21.5mm side fits 21mm lug nuts with damaged or distorted caps. "Flip" design is for use with extended anvil impact wrenches or with an extension. • 1/2" Dr. 21mm x 21.5mm Flip Socket • Poly bag with barcode • Weight: 0.58 lbs. • Lifetime Warranty
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