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Again, the rpms of the Dremel scream caution when using it to sand. Try the scotch-brite type abrasive wheels instead. They come in 4 grits and are more forgiving than a sanding drum.

I’ve found that it is perfect for drilling out pins. The only drawback is that the Dremel is a quite high rpm device, so be careful. Check that the drill bit is going exactly where you want before...