I ordered two for Twice as hot. Both were not round, causing my tool to "wander" around the workbench. Even if the tool were attached to a workbench, sharpening it wouldn't do much. I ended up putting the old wheels back in until I could get hold of some quality grinding wheels. I am a professional and will not order from Norton again. My time is worth more to me than the money I save. Maybe I can use a tool for axes etc on a stationary machine, but not scissors right?