- Chrome Molybdenum steel extractors for the toughest applications
- Undercut edges provide solid grip in broken screws, bolts, studs, pipes, and zerk fittings
- Rockwell hardness HRC50-52
- Includes: 1/8"" Drill size screw extractor, 3/16"" Drill size screw extractor, 15/64"" Drill size screw extractor, 5/16"" Drill size screw extractor, 3/8"" Drill size screw extractor