Bearing steel, practical and Bolt remover for wood and metal screw removal is ideal for construction, automotive, home projects, or industrial applications Flute screw extractor dimensions are engraved on the extractor for easy identification Bolt extraction kit helps quickly make studs, bolts, socket screws and fittings Our flutes are designed to be embedded deep into the metal as you rotate the tool, so the resistance of the fastener increases the grip of the extractor, Manufacturer: Tizuqe