Corrosion Resistance: has been hardened, tempered and anodized Colour coded, easy identification Nylon sleeve to prevent damage, each socket has an nylon insert to prevent damage to alloy wheels For use on impact tools 1/2 inch Drive Sizes: 17mm, 19mm, 21mm Notice: Case is NOT included Package 3pc Wheel Deep Impact Nut Socket Item Specifications Material Chrome vanadium steel Size 17mm, 19mm, 21mm.
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