10-Piece set 10mm – 19mm in a storage tray Flank Drive® Plus on the open end Flank Drive® system grip on the flanks/flats Continuous arc design for greater strength High quality proprietary steel Nickel-chrome alloy finish resists rust 7.5° offset design Proudly made in the U. NEW STUFF ADDED DAILY. ALL SALES ARE FINAL ON THESE ITEMS. If you have any problem with your order. We guarantee that your issue will be solved quickly. Thank you for looking at my store! You’re welcome to watch other items I sell. If you have any questions please feel free to ask – We’re always happy to answer your queries.