Greenlee 06923 Quick Cutter Adjustable Recessed Hole Saw Adjustable in 1/2-Inch increments for cuts of 2-1/2-Inch to 7-Inch Quickest, most affordable way to cut perfect holes in ceiling tile Cuts clean, precise holes that ensure no light leakage or poor-fitting installations Self-sharpening, carbide-sprayed cutting tips can cut dozens of holes in very abrasive materials and still stay sharp Dedicated arbor and pilot drill eliminates changeover time