3/8" Drive Socket Set, 28 Pieces, Standard & Deep Length, 6 Point, Metric, 6mm - 19mmMetric standard sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm and Metric deep sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm. Chrome finish for maximum resistance against corrosion. Large laser etched markings improve size identification and provide differentiation between SAE and metric sizes. Knurled ring provides superior grip for quicker and easier removal of socket from ratchets and attachments. Brand, part number