22 in 1 Screw Extractor Tool: 10pcs Dr#1-Dr#10 extractors, 10pcs Ex#1-Ex#10 extractors, with 1pcs bit holder and socket adapter. High speed steel screw extractor, high hardness, rust and corrosion resistance; Chrome vanadium steel adapter, wear-resistant and durable. Simple operation: Choose a smaller drill bit than the one that damaged the screw, then use an extractor of the same size and rotate in the opposite direction to remove the screw. Suitable for electric hand drills rather than impact drills, compatible with most sizes of screws/drill bits/bolts, such as square head screws, hex bolts, wood screws, etc. Comes with a small tool storage box, it is not easy to lose accessories and is convenient and portable to easily remove rusty, damaged or loose screws and bolts. Specification: Material: HSS 4241 Drilling: #1, #2, #3, #4, #5, #6, #7, #8, #9, #10 Extractors: #1, #2, #3, #4, #5, #6, #7, #8, #9, #10 Bit Holder: 60mm Socket Adapter: 26.3mm Warm Tips: - If the broken screw has a