On this Stumpy Nubs video, James talks about sandpaper and when you should change it on a palm, disc, or belt sander. As he points out, far too often, in a misguided attempt to save money (what amounts to no more than $1.25 for a good sanding disc), we go too long before changing discs.
Going too long with an exhausted disc takes up more of your time, can mess up your finish, and can tax your tool. He offers tips on knowing when your disc is ready for a change.
He also talks about cleaning your discs to get more life out of them and storing them in an airtight container to reduce the damage that humidity causes. If your discs are bent and your belts are twisted, they’ve succumbed to humid conditions.
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