10pcs or setThe impact wrench kit includes 10 different socket sizes in total Sizes are 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm, 21mm, 22mm, 24mm Different sizes can meet your different needs Complete kit saves you time and effort to find other accessories High quality materialsThe impact sleeve is made of high quality chrome vanadium steel, high temperature hardened to achieve high hardness and precision and effectively reduce screw wear The surface is galvanized, has good rust and corrosion resistance, and has a long service life Wide range of applicationsThe sleeve is mainly used for tightening or loosening screws, and its interface has a hexagonal drive design, which has strong locking force and is not easy to slip Used for home, automobile or other mechanical equipment maintenance With Tool BoxIn the tool box configuration, all sleeves can be neatly stored On the one hand, it is convenient for daily storage and carrying to work On the other hand, the tools are not easy to lose The sleeves are engraved with appropriate size markings. It's easy for you to use