20-PC. 3/8″ Drive Metric Standard and Deep Socket Set – 6-PT. Innovative design to prevent fastener roundingChrome-plated vanadium-steelHigh visibility size marking for easy identification(Standard: 10mm – 15mm, 17mm, 19mm, 22mm; Deep: 10mm – 15mm, 17mm, 19mm; 3/8” Drive Steel Handle Ratchet; 3/8” Drive Extensions: 75mm, 125mm)PLEASE READ CAREFULLY. Item is eligible for a 30-day return policy. Buyer pays return shipping. Item must be returned in the EXACT same condition as purchased to receive a 100% full refund less shipping. If item is opened, used, altered, or had any of the original packaging removed or damaged, only a partial refund will be issued to match the new sellable condition of the item.