I bought this hole saw to drill a hole in my brick wall to run a refrigerant lineset and wiring through when I installed my mini split heat pump. This hole saw was a bit slow to go through the brick and I had to stop and let my drill cool off a couple of times, but the brick was pretty thick and it got the job done eventually, so I can't complain for the price. The tip doesn't look like it has been damaged or significantly worn out either, so it seems to have survived drilling the hole.
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