EASY TO USE: You just need to use a hammer to hit the disassembly tool on the damaged nut, then select the 1/2 inch square wrench to loosen the nut counterclockwise to remove those rusty nuts. The plum-shaped internal thread design provides excellent torque and can rotate deep stud fasteners. The non-smooth concave wall inside is more conducive to gripping the stubborn nut and easy to pull out. SUPERB PRODUCTION PROCESS: The damaged wheel nut extractor is made of high carbon steel (chromium-molybdenum steel). Each surface is coated with a black oxide coating designed to increase strength and life and provide corrosion resistance. MULTI-APPLICATION: 17MM, 19MM, 21MM and 22MM four different size nut pullers and an extra metal rod can meet different needs of usual needs, whether car repair, home decoration or craft production, can provide great convenience for you. PREMIUM SERVICE: If you have any problems while using our product. Contact our professional after-sales service team by