138, Rabbeting Bit, Make Strong Lap Joints, Cut Recesses To Let In The Back Panels Of Cabinets, Or Create An Interesting Detail On BuiltUp Molding, Produces Super Smooth Cuts On Both Surfaces Of The Rabbet, Interchanging Bearings Allow Creation Of Many Different Rabbet Depths With A Single Bit, Use In HandHeld Or TableMounted Routers To Cut Hard Or Soft Wood, Plywood Or Composite Material