This carbon steel forstner bit gives you a clean, flat bottomed hole from any angle. For use with hardwood, softwood, MDF, plywood and melamine. It is excellent for drilling all thicknesses of wood including thin materials and veneers without breakthrough and splintering. It is guided from the outer rim and will not move off center. This 1 3/8" bit has a hexagon shank size of 5/16" . The maximum recommended RPM's for this forstner bit is 800 (hardwoods) and 1200 (softwoods).
This forstner bit is also ideal to recess the 1 7/16" clock fit-ups.