I got the itch for a grinder and learned that there was a Harbor Freight
place only 100 miles from work so I headed down there to buy of of these.

http://www.harborfreight.com/cpi/cta...emnumber=46727

Well, I got there and from 20 feet away I liked it. At 1 foot I passed.
Darn display model had .020 or worse wobble as in flange not square to
shaft. Having bought a chinie grinder before that turned out to be lots of
iron and no electrics I wasn't too eager to get burned again.

Now likely I could have taken the wheel mounting flanges off and squared
them up off the machine or even in the machine but at that point I only had
16 bucks worth of gas in this thing for the round trip and decided to back
away quickly.

Anyway, I'm going to build my own now. I have a 1725 tefc motor, some
pillow block bearings, and chunk of ductile cast iron that I am going to
turn into a rotary lap that I'll charge with 1200 grit diamond paste to
finish the edges.

So what grit silicon carbide metal backed cup wheel should I buy?

Wes