1、11-piece nut extractor is used to extract damaged bolts, nuts, screws, etc. It is easy to handle. 2、Multiple Size：9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 19mm. 3、Made of high strength chrome vanadium steel, it is strong and has nice durability, wear and impact resistant. 4、This extractor tool can be driven with metric wrenches or sockets for quick work. 5、It comes with an aluminum storage box for neat storage and easy access, not easily lost. Features: 11-piece nut extractor is used to extract damaged bolts, nuts, screws, etc. It is easy to handle. Multiple Size：9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 19mm. Made of high strength chrome vanadium steel, it is strong and has nice durability, wear and impact resistant. This extractor tool can be driven with metric wrenches or sockets for quick work. It comes with an aluminum storage box for neat storage and easy access, not easily lost. Specifications: Color: Black Material: Chrome Vanadium Steel Size: 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 19mm Package Size: 170 * 80 * 35mm/ 6.7 * 3.1 * 1.4in Package Weight: 617g/ 21.8oz Packing List: 1 * Bolt Remover Tool Set 1 * Socket Adapter 1 * Bolt Remover Tool Set 1 * Socket Adapter