Termight Series 4-5/8in X 4in Wood Boring Drill Bit/self Feeder TerMight drill bit models are offered in a wide variety of sizes for a multitude of uses Crafted to cut large diameter holes in wood for pipe, conduit, and other applications Features a replaceable self-feeding pilot screw which holds the bit in place and helps draw the bit through the wood, improving balance and reducing runout Multiple spurs on the outside diameter increase the cutting performance of the blade Packaged in a heavy-duty plastic tube, with a replacement pilot screw included