SK 30 Pc 1/4 Dr. Deep/Standard Metric/Fractional Socket Set?? ratchet Set Lot. Includes metric and fraction all 1/4 drive sockets deep and shallow. Saw 1/4- 1/2 deep and shallow. Metric 6mm – 12mm deep and shallow. Ratchet 2 extensions, swivel, and spinner handle. All on new snap on rails.