A perfect addition to any toolbox, this 10-piece Professional Metric Socket Set features 1/4" drive sockets made of drop-forged steel that is chrome-plated to resist corrosion. Comes in assorted sizes for every job. Sizes: 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 9mm, 10mm, 11mm, 12mm. Comes packaged in a clamshell.