Hey guys came across this video figured I would share it. Deffinitly something I have never seen before and its amazing this guy does a perfect mini hollow grind on this little grinder he made (prototype) with 1 hand....check it out like I said I don't know if you guys have seen something like this but I haven't deffinitly unique in my book!
https://www.youtube.com/watch?v=Uhe0NNYLYv4