5/8" hex drive plug cutter Hardened steel for long life Tight fit; no glue needed Plug cutters fit quick change chuck in a drill press Tapered sides and a chamfered end for easy start This 5/8" hex drive plug cutter maximizes the torque needed to bore into the hardest woods. Made of hardened steel for long tool life, the cutter has tapered sides and a chamfered end for easy starting, and its tight fit eliminates the need for glue. The cutter also fits in a quick change chuck (830806).