But I'm guessing that the automotive systems are not practical on a
jeweler's scale. The ones I referred to are the 1" PSA disc size,
and I think they have stopped making the Roloc systems for that
size. By the way, I got my previous description a little backwards-
the stubby plastic screw is on the disc-holding head, not on the
half that fits in the flexshaft.
Sorry to take so long to get back on this one. I’ve been busy
getting the website re-organized and adding a bunch of products.
Here’s what I found out about the ROLOC (twist-on) microfinishing
discs. As you mentioned, they are no longer available from 3M in any
size. However, there is another 3M ROLOC product that is available in
the 1" Size. Instead of microfinishing film, the product is called
For those that haven’t tried Trizact, it’s an engineered
micro-replicated abrasive that is very consistent and effective. It
looks more like a screen mesh than sandpaper. The finest grade is A6
or 2500 Grit so it does not get as quite as fine as the
microfinishing film. 3M sells this product to some pretty picky
customers including Harley-Davidson for their motorcycles. It works
very well and, again, requires no additional chemicals.
If there was enough demand, we would go ahead and stock the ROLOC
from of Trizact, but people would have to let me know if they were
interested. Right now, we do sell the very same Trizact in little
bands and discs by the grade or in kits.
Finally, since this discussion started, we are working on a way to
provide the ROLOC Microfinishing Discs once again. We’ll keep you up
to date on this via our newsletter.
McKinnon Global, LLC
Fine Jewelry & Creative Supplies