Features Forged by premium chrome vanadium steel, plus heat treatment, rustproof and sturdy. Ideal screw removing tool for household use and professional electrician. The extractor can easily and quickly remove broken or rusty screws, bolts and studs. It can be used in combination with power drill. Designed with deep and wide threads, long service life. Features:1. The extractor can easily and quickly remove broken or rusty screws, bolts and studs.2. Forged by premium chrome vanadium steel, plus heat treatment, rustproof and sturdy.3. Designed with deep and wide threads, long service life.4. It can be used in combination with power drill.5. Ideal screw removing tool for household use and professional electrician. Specification:Condition: 100% Brand NewMaterial: Chrome Vanadium SteelQuantity: 8pcsWeight: Approx. 762g/26.9oz Package list:Application Range4.0mm 3-6mm4.5mm6-8mm6.5mm8-11mm7.5mm11-14mm11.0mm14-18mm15.0mm28-25mm20.0mm25-35mm25.0mm35-50mm Package list:8 * Screw Extractors Package List