The spoil board surfacing router bit is ideal forwoodflattening, bottom cleaning,rabbeting, resurfacing, and also for trimming, slotting, and grooving. The replacement carbide insert makes the router bit more economical.FeaturesIndustrial grade with durable blade andbalanced knife body.3 wings with replaceable carbide inserts, easy to replace the blade when it gets dull.The shank size is 1/2\

Bottom Cleaning Router Bits