Set for removing damaged screws and bolts. The set includes 6 high-quality extractors that are suitable for screws and bolts from 3 to 12 mm in size. They are made of strong alloy steel with a hardness of 63-65 HRC, which guarantees a long service life. The main advantage of this set is that it will help you deal with any stripped, rusted or damaged fasteners. You simply drill a hole for the right size of extractor and easily remove the problem screw or bolt counterclockwise.