Overall Dia. 1 3/8", Rabiting Depths, flush, 1/8 ', 1.4 ', 5/16", 3/8", 7/16", 1/2", Carbide Height 1/2", Shank Dia, 1/4", Overall Length, 2 1/4", Application: Joining Boards and letting in back panelswith different depths of cut.