Greenlee 02800 Hex Shank Quick Change Arbor for 9/16-Inch to 2-Inch Hole Saws The best arbor in the industry ensures a solid connection without any gaps or wobbling Arbors include replaceable, high-speed steel pilot drill Pilot drills have unique split-point tip design Use with Greenlee bimetal hole saws, recessed light hole saws and carbide-grit hole saws Can be used with Greenlee 901 or 904 bit extensions