Ring Diameter

As you might imagine ring diameter is something that I think about often.  Here at UnkamenSupplies we measure our rings by their inner diameter ( ID).  Elsewhere rings are sometimes measured by their outside diameter ( OD).

I prefer measuring by ID because of the greater precision it allows me.  When you buy a 3 mm ring from me, you buy it with the knowledge that it will have a 3 mm inner diameter.  My calipers are as much an extension of my body as a teenager’s cell phone.  I take pride in knowing that our rings are some of the most precisely cut and sized rings on the market.

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