So the other night I was watching a OXtools youtube video, and he mentioned he was sending a "round parallel" out to be ground. When I saw it, I realized I had one in a box of garage-sale stuff I bough a few months ago. Sure enough I found it. I have been searching the web, and HM, but can't find anything about what you use one for. Its roughly the shape of a coke can (a bit bigger in diameter). Has 5 holes evenly distributed, and aligned with the cylindrical axis. Holes are ~1/4" in diameter. There is a hole in the center, but it down not apear to go all the way through (maybe clogged?). That hole is ~1/16". Anyone have a link to where these are sold? or what they are used for?
Also, the probably unrelated box of small calendars next to it, any idea what they are?
Also, the probably unrelated box of small calendars next to it, any idea what they are?
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