I haven't done much grinding, and probably won't do any buffing on knives.

In the past i've done a lot of buffing on silver jewelry objects. OUCH!

Grinding? I've touched those 50 grit belts with finger tips, beyond OUCH! now healed.

"Shop safety" : buffers - grab and throw objects
grinders- remove flesh faster than you can imagine

Just a thought on chat subject

Mark

ok Sounds good to me, Shop safety it is !!

eye protection, both particulate and light waves;
ear and other body protection like feet and fingers;
Buffers, Grinders, saw's;
acid and alkaline baths as well as chemicals in the air, from grinding toxic things like cocobolo, antler, etc. and finishes.;