Milwaukee 45-34-8042 - 3/8" Drive 22mm Deep SocketThe MILWAUKEE 3 8" Drive 22MM Metric 6 Point Deep Well Socket with FOUR FLAT Sides was designed from the ground up to be part of the most versatile socket family. The 3 8" drive sockets feature an innovative design with four parallel flat sides, which deter rolling and are wrench compatible. The metric socket sizes are stamped into the flats providing improved, easy to read visibility. This deep well socket has been optimized geometry to reduce bolt