TEKTON 1220 1/4" Drive Deep Socket Set, 5.5-12mm, Metric, 8 Sockets Drop forged carbon steel construction Corrosion-resistant chrome plated finish Tapered-end 6-point sockets Set Includes: (8) 3/8-Inch Drive Sockets (Metric): 5.5, 6, 7, 8, 9, 10, 11, and 12 mm