3M abrasive shop tips
 

3M is offering email subscriptions to their newsletter for
professional metalworkers, "Shop Talk." It's about using materials and
methods for abrasive grinding and finishing, including performance
info on their new materials.

I haven't looked into it myself, but if you're interested, here's the
signup page:

https://tinyurl.com/yamvpv6a

--
Ed Huntress