Use these dedicated sockets every time you remove damaged/distorted lug nuts with steel caps. These lug nuts become distorted due to improper leverage using the factory supplied tire iron. Removing over-torqued lug nuts during extreme cold/heat also distorts lug nut cap. Dual flip 1/2? drive impact socket design. Comes in a custom vinyl case. Includes 4 lug nut removal tools and an Extractor Punch.