I got bit by the MS updates and it reset all my settings on my laptop, I can now see it.
I looked around a little and found that a similar sharpener is sold by Oregon, now if that is the same manufacture that makes chains who knows? But I can see the idea behind it, perhaps it takes the burr off of the cutting edge. But I would still want one that actually sharpened the chain where it is suppose to.
Mine is similar to Malardsx2's that you can mount to a 4x4 or just lock it up into a vice and then sharpen the chain properly. I have used various sharpeners out in the woods but nothing beats the old round file of the proper size.
They have a video on Northern Tools site that explains how it works
Take your chainsaw's chain from dull to sharp in as little as 3 seconds with the portable Oregon® PowerSharp® system. Thi...
www.northerntool.com