Screw Extractor, Manufacturer suggested retail price.$21.10 Features and Benefits: * Removes screws, broken studs, set screws, pipe and alemite fittings * Drill hole in screw. Place extractor into hole. Tap lightly with hammer. Turn counter-clockwise with tap wrench to remove screw * Features undercut flutes for more positive grip. Sets & Kits do not have warranty/ see individual pcs for details