Over All Dia. 3 9/16", Cut Depth 11/32, Carbide Height 25/32 10degree, Bore Dia. 3/4. This cutter is used where very strong joining is needed. The cutter has three balanced wings and will join wood up to 5/8" thick. Wider boards can be joined by stacking multiple cutters on the spindle. After the first board is cut, the spindle should be raised or lowered 1/8" to make the mating cut.