The screw extractor have a square center section and comes with extension rod for leverage Suitable for welding work and worn or damaged screws and bolts, the screwdriver set is essential tool for enthusiasts and professional This screw extractor set is selected from high carbon steel, which is rust-proof The extractor features double-headed designs of different size The and repair can meet different requirements and is widely used Screwdriver set provide a 2 in 1 function for damaged or rusty screws and bolts as well as repairing threaded connection on pipe, Manufacturer: NUEAYMS