I should have known better, but I rolled the die. I haven't lost yet, but there's no jury yet. This grinder shouldn't cost $107. Everything faced south when I opened the all-white, unlabeled box. No manual, no instructions, just an exploded view of the parts. Why?! Where can I get spare parts? Other than that, it's still a pretty decent grinder. It seems to be a little quieter than other straight grinders my colleagues use. I use it about twice a week for a few hours for removing paint and sanding or sanding metal parts. If it sticks, you're really putting pressure on it, but the same thing happens with any air grinder. I will say that you can control the speed with the crank quite well. Fits well in the hand, there is no vibration. I had to tighten the locking ring where the angle head was already making contact with the body. There is no information anywhere about the grease fitting on the 90 degree head. I don't recommend, but don't urge you to avoid. It is your turn to roll the dice. Support your foreign Chinese slave.