A special design straight router bit with a bottom cutter insert. Unlike common mortise bits, these bits feature a special overlapping centre carbide tip design which guarantees you a smooth and clean bottom cut. Ideal for cutting or cleaning out dadoes, cutting stair treads into risers, and putting stress relief on the back of mouldings. Great for making wood signs as well as removing paint or varnish.
Use a two-flute bit where fine finish is paramount. Two flutes balance the bit, eliminating vibration that degrades the cut finish.
Two cuts per revolution yield a smooth surface, but feed rate is slightly reduced.
This is a great bit for creating “stress relief” areas in backs of large and long trim mouldings like skirting. These bits are two flute, carbide tipped.