Oh, what to get for Dad on Fathers day.  The best gifts for Dad is always tools, especially cool tools that are not going to break the bank.  The Kobalt 27-Piece Standard 1/4-in and 3/8-in Drive Xtreme Access Socket Set is cool because of a few things.  First it does both SAE and Metric.  This allows you to carry less sockets, it uses a spline system which works rather well except for the angled spline makes it slip easily off the work.  The pass thru design allows you to have a limitless deep socket.  The kit has a nice box that is perfect for storing in a truck, boat, tool box..  The list goes on.

If you you ever lose a piece from the kit Kobalt has you covered with the Sockets For Life program which is an AWESOME thing.  Dad will always be able to have a complete set, even after you drop his socket in the river while fixing your boat.  Spline drive is really starting to grow on me, however they tend to slide off the bolt unless your perfectly square.  I keep mine in the truck in case of an emergency, it saves space.