Works well. I can always count on Starret. Used for cutting holes in various types of countertops. When cutting thick material, remove the hole saw 3/4 of the way down, place a board underneath and clamp. Just drill through with a drill. Turn the board over, attach the hole saw and make nice cuts. If it sticks, let it cool. I take a Phillips screwdriver the same size as the hole I drilled, put it in the hole and gently/slowly bend the screwdriver to remove the split shank. The noise will almost disappear. Keep drilling. I have at least 9 different sizes. This replaced the one I had worn out. Use multiple times at the same time and then save until the next project.