I can see a major problem with doing that, if you have a weak small motor fitted to the grinder, by adding that extra big grinding wheel, it will STOP as soon as you apply any decent pressure to that grinding wheel. Instead of being a tight arse, go buy a new grinder with a BIGGER motor and it will work much easier than that little weak grinder you have now. -------------- You are only putting lip stick on a pig, with what you have done. :-)