Nice!, I'd have the thing gunked up in about 5 minutes though
107 and 157 mm . Roughly.What's the ID/OD?
That’s why I “retired” my ring light. I’ve posted photos of what I currently use (I just need to find them).Gosh how things change with cheap stuff from China. I had to make my own. Friction fit on the quill. In hindsight should have been much larger diameter. Notice the shadow which makes lighting the spot where something in the 1/4" drill chuck or R8 collet sits impossible.
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As a result I don't use it nearly as much as I thought I would.