This HOLE saw is a waste of money .It broke after only one use. The finish was rough and uneven. The arbor was loose, causing the saw to wobble during use. The only positive thing was that it arrived quickly. A complete disappointment in terms of quality. Industrial and Scientific buyers beware..
I had to cut three 6-1/4" holes in one of our range of cabinets to fit 6" cord for install an exhaust system. My only drill has a 3/8" chuck, and this drill was the only one that came with an arbor so it could be used with a 3/8" chuck. Worked great for what I needed.