General description The Broken Screw Extractor Set includes 11 pieces designed to effectively remove damaged or stripped screws, bolts, and fasteners. The tool steel extractors feature a left-hand helical flute for enhanced gripping power, while the high-speed steel drill bits ensure high hardness, allowing them to drill through most screws with ease. Technical specifications Material: High-speed steel (drill bits), tool steel (extractors) Drill Bit Diameters: 2.0mm, 3.0mm, 4.0mm, 6.5mm, 7.5mm Suitable Screws: #1 for M3~M3.5, #2 for M4~M4.5, #3 for M5~M7, #4 for M8~M9, #5 for M10~M12 Installation Drill a hole in the center of the broken screw using the appropriate drill bit. Use a suitable extractor to remove the screw. For the large extractor, an adjustable wrench can be used. The set includes a tap handle to hold the extractor firmly. Usage This extractor set is easy to use and is specifically designed for removing damaged or stripped screws, bolts, and fasteners. Other information