I'm sure you will figure out how to get a wrench. But you should NOT need more than one, either to tighten or loosen the arbor nut. If your arbor nut is too tight right now, just use the clamp idea to loosen it. You should never have that problem again unless your hairy knuckled uncle borrows your saw.
In short, don't overtighten that nut. To remove the nut you should be able to stick any piece of scrap between a tooth and the table and easily break that nut loose. I use the end of my zero clearance insert, since it's already in my hand anyway. To tighten the nut, you should be able to hold a
10" blade by hand with plenty of torque to counteract your wrench hand.I've never had an arbor nut loosen on me, and in the event of slip they are designed to slip in the tightening direction. Hence the left hand threads. Seems to me there are a bunch of guys around here so scared of their saw that they just gotta romp on that nut!
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