Description: Material: These Screw Extractors are made of premium alloy steel material, offering high hardness and strength. It is not prone to breakage, ensuring long term durability.Easy Removal: Damaged bolts, nuts, and screws can be easily removed with this extractor tool set, saving time and effort.Convenience: High visibility size sign for quick identification.Versatile Use: This Easy Out Bolt Extractor Set is great for various applications in your home or professional workspace. It's an essential tool for any repair or maintenance task.Portable: Comes with a storage box stays organized and takes your set on the go. Specification: Material: Alloy Steel Color: Black Argent Size Chart: 1/2inch Square 27/32" 13/16" 25/32" 3/4" 23/32" 11/16" 21/32"3/8inch Square 5/8" 19/32" 9/16" 17/32" 1/2" 15/32" 7/16" 13/32" 3/8" 11/32" 5/16"Hexagon 9/32" 1/4" 7/32" 3/16" 5/32" 1/8" Package Includes: 27 Screw Extractors with Storage Box Note: Please allow slightly errors due to manual measurement and different monitors.