I have been putting off on starting this thread but unfortunately I have run out of options. I have a right tilt Unisaw and I have a extremely hard time getting the arbor nut on and off when it's almost off the arbor. When putting the nut on It will thread in almost all the way and then it stops. Sane thing happens when I'm taking it off it will come off 90% of thruway and then stop. To remove it I have to take a pair of vise grips and clamp down on the washer to the right of the blade to keep the arbor from spinning to remove it. The same fiasco applies to when I need to install the nut. I have tried grinding down the end of the arbor and nothing. I have tried filing it and that doesn't help either. Does anyone have another solution to fix this problem? The arbor nut will sit close to completely flush with the end of the arbor and stop turning. It has caused me to not want to work in the shop because when it comes time to swap blades or put my dado set on its a long drawn out process.