Review on Eazypower 30127 Achiever Carbon Mandrel: Unleash Precision and Power! by Jeremy Hudson

Biggest junk I've ever bought. You can effectively replicate this design with aluminum foil and you'll likely end up with a more powerful tool. It broke on the first hole. The metal is very thin. It bends when you press it lightly with your finger. If you need an 8" or 8.25" hole saw, I recommend buying a ruko. They're cheaper and a lot heavier than this pathetic excuse for an "industrial" tool. Negative stars should be an option.