Review on 🔃 Rotary Attachment for Sharper Sharpening: An Optimal Alternative by David Jennings

In theory these sharpeners should work perfectly. The plastic part holds the whetstone at the perfect angle etc. In practice this is nonsense. They are difficult to hold at such a perfect angle, even when holding the mowing blade in a vise, and they sharpen and dull the blade than it originally was. Buy a $10 angle grinder at your favorite hardware store and an 80 grit grinding wheel or cut-off wheel and use that. Perfect results. Pass these things.