Hexagon shank on all tools allowing the quick change of tools with either the handle socket, the magnetic adaptor or the keyless chuck on an electric power drill. Now we have got Countersinks both for metal and woodworking, Twist drills, Woodworking drills, Masonry drills, Hinged drills, Wood spade bits, Glass/Tile drills, Saw drills and so on. More products will come soon.