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.