For now it's a tool I need only occasionally so I wasn't keen on spending the SM price + shipping when I figured I could make it. The small one on the video was a no brainer. I had the drum, I had the bearing, and they matched perfectly. Things didn't turn out as easily on the large drum as I had hoped. But once I had invested the time in it I wasn't going to let it win! Also, and this may be a personal mental illness - I think I like making jigs and tools better than the project that I'm making them for
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