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 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 New Material: Chrome Vanadium Steel Quantity: 8pcs Weight: Approx. 762g/26.9oz Package list: Application Range 4.0mm 3-6mm 4.5mm 6-8mm 6.5mm 8-11mm 7.5mm 11-14mm 11.0mm 14-18mm 15.0mm 28-25mm 20.0mm 25-35mm 25.0mm 35-50mm Package list: 8 * Screw Extractors Package List