Waste. I managed to cut through about 36 inch 3/8 thick drywall before it snapped in half. The second took about the same distance, although I fed it at half speed. Both tools were operated at 20,000 rpm. He just can't seem to take the heat. I don't buy Dremel tools anymore after all the crappy stuff I've come across. If you're still thinking about buying this, you'd better get some extras.
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