OUR MOST POPULAR CORE DRILL! 1-3/8" Diameter, 12000 Max RPM, 5/8"-11 Threaded Arbor.
Best used for Granite and Engineered Stone.
The Alpha Dry Core Drill Bit provides the best cutting performance and can drill through the toughest 1 1/4" granite or engineered stone counter top at the job site without using water. Not only is this convenient but it also increases productivity by cutting down on the amount of clean up needed when using water.