Description: 5Pcs Flip Socket SetThis lut nut socket set has 5 different Flip Socket metric sizes, 17x17.5mm, 18.5x19.5mm, 19x21mm, 21x21.5mm and 22x22.5mm. 7 Pieces Half Size Lug Nut Flip Socket Setcomes with 5 pieces metric flip socket, 1x 80mm extension bar and 1x knock out pinFeatureWheel nut socket set with half size can quickly remove some expanded, rusty nutsWith Protective SleeveEach socket has a protective sleeve designed to prevent damage to aluminum wheels, and the protective sleeve is removable, and if the lug gap on some modified vehicles is too small, you can remove the protective sleeve to work1/2 Inches DriveThe 1/2" drive with standard 6 point hex ends ensures fitment with most lug nuts. it can used with 1/2 inch drive impact wrench (but it's not included) Package Includes: 7 Pieces Half Size Lug Nut Flip Socket Set Note: Please allow slightly errors 1-2cm differences due to manual measurement.