Yes, it works very well. I have it, and have used it several times...
I try to sharpen the blades on my mower at least 3 or 4 times a year...
You won't realize just how dull and flat the leading edge of the blades can get, until you sharpen them...
It's like a new mower for a while...
David
For those who don't know what is, it attaches to a Dremel and keeps the Dremel at the correct angle to the blade and provides a sharper edge with relative ease and speed...
Always remember, the Angle of the Dangle is most important...