I recently acquired this neat little hand crank grinder. You can see it's specs, etc. from the ad page. What I'd like to know is the following: despite the width of the wheel in the advert, it looks like the non-threaded part of this arbor shaft is only about 1/2" wide. Isn't this the limit of the width of any wheel that I might use?
Secondly, I have no way of knowing what thread pitch this shaft is. It seems to be 7/16", but I can't thread a 7/16-20 nut onto it. Do you simply count the threads per inch?
Thirdly, anyone know a good source for reducer bushings and arbor flange washers?
Please excuse my ignorance and thanks in advance for any answers you might provide.