Topec 55-Piece Screw Extractor & Broken Bolt Extractors, Multi-spline Extractors, and Drill Bits for Removing Damaged, Frozen, Rusted, Rounded-Off Bolts & Screws

"【PREMIUM INDUSTRIAL GRADE MATERIAL】 - Made of heat-treated high-quality CR-MO steel (chromium-molybdenum steel), is the ideal tool for removing broken screws, bolts, studs, fittings, threaded pipes and pins.

55-PIECE MULTIFUNCTIONAL SCREW & BOLT EXTRACTOR SET - It contains 16 high speed steel drill bits, 13 multi spline extractors, 10 drill bit guide bits, 6 spiral screw extractors , 5 extractor pins, 5 nut extractors."