From the Manufacturer

Snap-on Industrial Brand JH Williams 30-Piece metric socket and drive tool set is packed in a keep safe foam system that keeps tools organized and helps prevent loss. These tools are professional quality, mad of high grade chrome vanadium steel. The sockets feature super torque lobular openings for greater turning power without deforming the fastener. The set includes 6 drive tools, 12 shallow 6 point sockets, and 12 deep 6 point sockets.