TEKTON 1/4-Inch Drive Socket Set, Metric, Cr-V, 4 mm -12 mm, 9-Sockets | 1202 Made from high-strength, heat treated chrome vanadium steel Corrosion-resistant chrome plated finish 6-point, high-torque design grips flat sides of fastener, not corners, preventing round-off Notched drive locks onto ratchet or extension Set Includes: 9-pc. 1/4 in. dr. 6-point sockets (metric): 4, 5, 6, 7, 8, 9, 10, 11, 12 mm