Features: 1.Round screws let you down? Are peeling screws really affecting your productivity and bringing your work to a standstill? Then the Screw Extractor Bit Set is the right tool for you 2. Designed to remove damaged studs, bolts, socket head cap screws and fittings. 3. Made of high-quality materials, high hardness, not easy to break, durable. 4.Easy to use: effectively solve the problems of broken screws and screw stuck. 5.Easy to carry: Light and compact, with storage box, easy to carry and store. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Specifications: Use caliber 9/10/11/12/13/14/15/16/17/19mm Outer diameter 16/16/17/19/19/21/22/24/24/27mm Wrench interface: 10mm Package List: 1 set x Broken Nut Bolt Extractor