General description High-quality damaged screw extractor set made from chrome vanadium steel, providing high hardness, rustproof properties, and durability. This 11-piece tool kit is designed for easy use, featuring aggressive left-handed extractors and right-handed drill bits with a spiral flute design for enhanced gripping power. Ideal for removing damaged, rusted, or stripped screws, studs, bolts, fasteners, and more. Technical specifications Material: Chrome vanadium steel Number of pieces: 11 Usage Can be used to remove damaged screws, studs, bolts, and fasteners Drill bits can bore holes in wood, metal, plastic, brick, and walls