Check the listing for details. Walton 50206 6 Piece Pipe (NPT), Stud And Screw Extractor Set. Condition: New. Listed at 246.19 USD. Model Number: 50206. The hardened steel fingers of Walton Tap Extractors fit in the flutes of a broken tap to back it out simply and safely. Manufacturer: Walton. Shallow grip, which lessens expansion and jamming.