15 Piece, Metric, Deep Impact, Socket Set, Set Consist Of Sizes: 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm, 27mm, 30mm & 32 mm Sockets, Drop Forged, Heat Treated, Chrome Vanadium Steel, Black Oxide Finish Resists Rust & Corrosion, Tapered Socket Head Allows Easy Access To Nuts & Bolts.