I came across this grinder... https://www.youtube.com/watch?v=Gl1tjo2B-rU#t=188 Then I got curious about the wheel and found that it can be had with a mandrel on its own... Diamond View Disk | Kaindl Grinding Technology Reiling GmbH and does not appear to be too stupidly priced. The worksharp has a similar see through system but it used a paper abrasive. I have never tried it on the Worksharp I have and it turns at a far lower RPM and won't sharpen Carbide tools etc anyway. Another more comprehensive link....https://www.youtube.com/watch?v=pFKGnQXp5bQ
See Through Diamond Wheel
