Hey guys, I'm thinking about purchasing an air scribe for fossil preparation, which I will mostly be using to prepare brachiopods and gastropods out of sandstone matrix and tidy them up a bit (will it be able to remove the rock covering the shell but leave the shell intact?). Problem is I know next to nothing about what to buy, where to buy from, or what kind of air scribe or psi pressure will work best to blast away solid sandstone off my marine invertebrate fossils. Anyone got any tips? Coul