Introducing the Stanley PROTO 5 Piece Square-Section Screw Extractor Set. These professional tools are designed to provide an efficient method for extracting machine screws, studs, cap screws and other types of threaded fasteners that have been partially destroyed preventing their normal removal. Extractors are made from heat-treated steel (57-59 HRC) that guarantee durability and superior hardness. The black-Oxide finish ensures high-corrosion resistance and long life operation.
• Made from heat-treated steel for superior durability
• The four-sided gradual taper flutes prevent expansion and distortion of the broken part and eliminate wedging in the hole
• Square shank ends permit use of a die holder or wrench to turn the tool anti-clockwise to remove the broken part
• Size stamped on extractor refers to drill bit size to be used with that extractor.
• Supplied in a plastic pouch for easy storage and transportation