Features Specifications: Damaged screw extractor set, including 5 different sizes of 7.5mm 5mm 4mm 3.5mm 3mm, to meet different maintenance needs. Main Purpose: These tools are used for dismantling and removing screws that have fallen off, broken, stuck or damaged, efficient and convenient. Carbon Steel: These screw extractors are made of carbon steel, with high hardness, wear resistance, impact resistance, and long service life. 1/4in Hex Shank: These screw removers are equipped with standard 1/4 inch hex shank, can be easily installed on power tools, stable and reliable. Applicable Fields: Including 5pcs broken screw extractors, widely used for home, telecommunications, automotive, or mechanical maintenance work. Specification: Item Type: Screw Extractor Set Material: Carbon Steel Specification: 7.5mm 5mm 4mm 3.5mm 3mm Shank Diameter: 1/4in Hex Shank Package List:5 x Screw Extractors Package List 5 x Screw Extractors