
Works for what I wanted although I wasn't very impressed with the size. I had to buy stones a size larger and then using a diamond dresser cut the rotating stones to size as the stones fitted in these "adapters" weren't working properly. I'm not sure who is at fault, the adapter or the stone or both? All me know is to put everything together and i can have it do what i need and i can build my own little punch press.if you buy it don't expect perfection you might just get lucky and your bits might work right at least are they cheap