With the Ridgid 16671 R2S hd hole saw arbor, you drill large pass-through holes with maximum stability and control. The solid shank construction prevents play, vibration, and slipping in the chuck during demanding drilling in wood, metal, or plastic. Designed for hole saws ranging from M32 to M152 (32 mm to 152 mm), this arbor is ideal for pipe and cable installation work. You can change compatible hole saws quickly and without tools to keep your workflow smooth. It is suitable for both high-power portable drills and drill presses with a chuck of at least 1/2" (12 mm).