"It's with very mixed emotions I tell you all that I'm pulling out of NIN," Avery posted in a message Wednesday.
"I know. It's been a tough call and I don't know if it's the right one. But I really want to focus on my musical life here in L.A., on film work in particular. As the tour dates kept growing... I just got overwhelmed," he wrote. "I just got home from a year of heavy travel with Garbage, the idea of leaving town for another year and a half, and with all the intensity that Nails demands... fortunately my friend Trent [Reznor] understands all this and appreciated my pulling the plug now instead of deep into 2013 and 14. Go get 'em gentlemen."