Set contains sizes 10, 11, 12, 13, 14, 15, 16, 17 and 18mm. With clip rail storage. Limited lifetime warranty.Drive:3/8 in.Pieces: 9 qty.Point Size: 6 qty.Metric Socket Size: (Standard) 10 (Item# 558077), 11 (Item# 558078), 12 (Item# 558079), 13 (Item# 558080), 14 (Item# 558081), 15 (Item# 558082), 16 (Item# 558083), 17 (Item# 558084), 18 (Item# 558085) mm.Material Type: 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 resistanc.Meets or exceeds ANSI and DIN specifications.