Use: This screw extractor set is designed to remove damaged, rusted or stripped screws, studs, bolts, staples. 6 Different Sizes: There are a total of 6 extractors in different sizes Easy to Use: Easy to use screw extractors, first drill a hole in the center of the broken screw, and then use a suitable extractor to remove the screw Use a Wrench: You can use an adjustable wrench to hold the extractor firmly when removing the screw Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be some color differences, please refer to the actual item received.