1、[Fine Surface Treatment] The surface of the bolt removal machine is treated with phosphate and blackened, so that it is not easy to rust. 2、[High Torsion] The special design of the extractor provides excellent torsion for turning deep fastener screws, saving you a lot of effort. 3、[A4 Steel Material] As a duplex stainless steel, A4 steel has good hardness, corrosion resistance and rust resistance, which greatly improves the practicability of the extractor. 4、[Main Application] This extractor is used to remove pipe damage, rust from G1/2in and G3/4in or to remove water pipe screws, bolts and fasteners, also suitable for general screw removal. 5、[Long Service Life] The extractor is heat treated as a whole, with high hardness, not easy to break, strong and durable, and has a long service life.