Been looking quite a few surface grinder Chuck’s for my surface grinder and was just curious exactly what you’re paying for with them? I know the fine pole are going to be more expensive as are the electromagnetic but aside from that there is still quite the price difference with some of them that appear to be exactly the same except for the brand name. Doesn’t seem like you’re paying for flatness because you’re going to dress it once you mount it anyways? Are you paying for the strength of the magnets? Just curious because it seems like there are some good Inexpensive fine pole Chinese made ones but I’m not sure if the price difference between one of those name brand is worth it? Thanks for any thoughts.