Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! You only need to use a hammer to hit the removal tool onto the damaged nut, then select the 1/2 inch square drive wrench to loosen the nut counterclockwise to remove these rusted nuts. The plum-shaped internal thread design provides excellent torque and can rotate deep-studded fasteners. The unsmooth concave wall inside is more conducive to the grabbing of the stubborn nut and easy to remove. The damaged lug nut remover is made of high carbon steel (chromium molybdenum steel). Each surface is coated with a black oxide coating designed to increase strength and service life and provide corrosion resistance. four different size nut extractors and an extra metal rod can meet the various needs of the usual needs, whether it is car repair, home decoration, or craft production, can provide you with Great convenience. If you have any problems during using our product. Contact our Professional after-service team via email. LANNIU after-sale Team will get in touch with you and timely solve your problems