This tool is of very good quality. I'm impressed that the protractor lock is so good that it doesn't need to be locked much. The movements are gradual when trying to set the grade and the grades are marked on a nice matte finish. So if I have oil it should be easy to see. The only thing that worries me is that it came to me in the package. The plastic cover and cardboard backing were slightly wrinkled. The adjustable nut managed to break the package and continued to move up, breaking off the top piece of plastic holding the nut in place. I really wish the packaging wasn't so cheap but everything was fine and there didn't seem to be any damage. I just think the packaging needs a little tweaking for safety reasons, but other than that it's a good product and I'm a fan of many machine-made Japanese products for the accuracy.
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