I had an 8 1/4" Skil worm drive saw in the late 70's or early 80's. This one is well before that era.

As to the diamond arbor, I grind those worthless things off so I don't have to knock the diamond out of a new blade. I've never had a blade slip with a round arbor even on a table saw and I don't make them "farmer tight" or even close to it.

Last edited by WhiteFawn; 11/13/16.