I got a set of these from HF a long time ago. When I used them in plywood I noticed that it burned the wood as it cut through. It was for a construction project do this was not a big deal. I have looked at the prices for quality hole saws at the borg - the prices are a LOT more.
If I used them a lot I would buy a good set.
Kevin
If I used them a lot I would buy a good set.
Kevin

Comment