Review on 🌀 YOTOO Cylinder Adjustable Deglazer Diameter: Achieve the Perfect Cylinder Surface Finish! by Jason Cavett

This grinder worked great. I've honed four cylinders with it and the last cylinder worked just as well as the first. I'm not sure how long it will take, but if you only need to make a couple of motors, it's worth buying. This is not high speed grinding. I believe that's why some people have trouble making sharpening a part. I have a cordless drill with a speed of approx. 150 rpm, this resulted in excellent cylinder surfaces.