Features This lug nut socket set is made from quality molybdenum steel material, the perfect tool set for nut removal. This lug nut socket set can be applied to quickly remove worn lock nuts, including rust, deformation, peeling or breaking, and car wheel hubs. Plum shaped internal thread design provides excellent torsion for easy and convenient fastening. The unique internal texture makes it easier to hold on to the stubborn nut for easy and efficient removal. This lug nut socket set has black oxidation surface which provides high hardness and high durability. Specification: Item Type: Lug Nut Socket Set Material: Molybdenum Steel Purpose: Nut Extractor Color: Black and Silver System: Metric Drive Size: 1/2inch Sleeve Size: Approx. 22mm / 0.86in, 21mm / 0.82in, 19mm / 0.74in, 17mm / 0.66in Package List: 4 x Nut Extractor 1 x Straight Bar 1 x Blue Storage Box Note: Do not use twist sockets to install new nuts. Package List 4 x Nut Extractor 1 x Straight Bar 1 x Blue Storage Box