Well, I was ready to install the blade on to my new SC2C today, but seem to have a problem. I purchased a 12" blade with a 5/8 id for the arbor before receiving the machine. Now, the blade slides right onto the arbor, but the flange supplied seems to be for a 30 mm bore blade. Did I purchase the incorrect blade? Is there a different arbor flange that should have been supplied or that I should have ordered?