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bent scalpel thing for conformal coating removal?

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jpanhalt:
As suggested earlier, I don't see why the TS doesn't just use a real dental pick/scraper (not some of the Amazon fakes).  My kind dentist gave me a few.  They are professionally designed and tempered for such scraping.

"Shave biopsy?"  I'm too tired to wade through all the Google garbage.  Is that a new name for Mohs biopsy/surgery?  A choice for images of the technique didn't appear.

JDubU:
Shave Biopsy:

https://www.mayoclinic.org/tests-procedures/skin-biopsy/multimedia/shave-biopsy/img-20007312

jpanhalt:
That's what I thought you meant.  It is not meant to scrape away under something before unsoldering it.

coppercone2:
So if I cut stainless shim, how do i sharpen something so flat? I have a feeling I will end up getting a mangled edge. I thought to tie it to my finger and try to 'pet' a wet stone with it to get a blade (like a fingernail extension).

JohnG:
+1 dental scraper

Not the pointy ones, but there are ones will a short, flat edge. It's meant for scraping with good control (dental plaque must be a lot like solder mask), and works great for scraping stuff off a PCB (solder mask, conformal coating, even scraping down excess solder on SMT pads. It works fast and with good control which is important to avoid collateral damage. I have never gone back to an Exacto for this task.

On my dental scraper, it has one flat edge and one rounded. The edge looks small, but it works quickly.

John

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