This is my 3rd Grex. I already have a 0.3 and a 0.5. I don't like swapping parts while I'm working and wanted a separate brush in 0.7 for some of my thicker clears and primers. Bought this brush and did the 0.7 mod. So far it's handled everything from Polycrylic to Stynylrez without a hiccup. The machining is precise and the finish is perfect. Love these airbrushes.
