Tools snap on snap on socket 12 set Loc: Z6 This set includes sockets ranging from 5mm to 15mm and comes with a magnetic tray. Snap-ons Flanl drive system grips the fastener on the flanks/flats delivering 15-20% more turning power compared to traditional sockets. The sockets are made from high quality proprietary steel for strength and durability, and feature a nicket-chrome alloy to finish for rust and corrosion resistence. Lightly used - fully functioning.