TEKTON 1815 3/8" Drive Socket Set, 8-19mm, Metric, 12 Sockets Drop forged, heat-treated carbon steel construction with a corrosion-resistant chrome plated finish Tapered-end, 6-point sockets for exact fit Set Includes: (12) 3/8-Inch Drive Sockets (Metric): 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19mm Lifetime replacement guarantee Lifetime Guarantee