"Whats to say about a hole saw for a a few quid. It done what I needed it to do and it remained sharp albeit I was only cutting wood. I have used similar Screwfix cheapie holesaws for metal but always ran them at low rpm as too fast and overheat the teeth. So yes I'd buy another and no doubt will. Screwfix is now local to me and I do find it handy as I can look up the stock online and reserve instead of driving around the other hardware outlets. Price is keen That's about that."