Step Drill Screw/Bolt Extractor Set 10pc

- Heat treated Chrome Molybdenum steel screw extractors and fully ground step drill bits. - Ideal for removing right-hand thread broken/seized screws and bolts. - Step drills produce a conical hole which when used with the corresponding extractor provide increased grip to easily remove damaged fitting. - Special design of the extractors cut into the side of the hole allowing increased force and make removing heavily seized fittings easier. - Supplied in storage case.