Review on Enhanced Double Sharpener Attachment: Innovative Alternative for Efficient Sharpening by Colin Watkins

I bought this sharpener hoping to use it to sharpen lawn mower blades with a drill. The first wheel failed because the pin holding the whetstone broke off, rendering the wheel unusable. Soon after, the second wheel failed, rendering the second wheel unusable. I threw both in the trash. The stone didn't grind at the 30 degree angle like my blade, it just created a small micro bevel on the blade. Very disappointed.