Set contains sizes 8,10, 11, 12, 13, 14, 15, 17 and 19mm. With clip rail storage. Limited lifetime warranty.Drive: 3/8 in.Pieces : 9 qty.Metric Socket Size: (Deep Well) 8 (Item# 558090), 10 (Item# 558092), 11 (Item# 558093), 12 (Item# 558094), 13 (Item# 558095), 14 (Item# 558096), 15 (Item# 558097), 17 (Item# 558099), 19 (Item# 558101) mm.Material .ype :Chrome Vanadium Steel .Storage Type: Clip Rail.Fully chamfered on both ends to accept drive tools and fasteners easily.Cold formed for consistent dimensions and greater strength.Nickel-chrome finish for corrosion resistance.Meets or exceeds ANSI and DIN specifications.