Just finished out a pipe using my new microblaster...This proved to be a major challenge- It definitely wasn't cheap- a little over $500 and after a few hours of trying to get it to work, I was ready to pull my hair out and throw the thing across the shop....so I sent it back....and got a new one a few days later. Then I tried 6 different abrasive medias at different settings to try to get it dialed in...and I'm actually fairly happy with the results...This pipe is one of my largest- 7/8" chamber, 2" deep, 5.5" long, and 85 grams...