SK Professional Tools 3/8" Drive 12 Piece SAE 6 Point Deep Sockets Set with Rail. New and backed by SK's LIFETIME WARRANTY. Sizes range from 1/4" to 15/16". These new SK rail sets are fantastic, great reviews and feedback from everyone. I like SK Tools so much I became a distributor. Your satisfaction is our top priority. We ship all items on or before the next business day. Thank you for looking at Pickles Marketplace item T25186.