Review on 🔧 Astro Pneumatic Tool PRN1 3/8" Rivet Nut Setting Kit - Metric and SAE Threads by Jeff Dabney

July 2019 Update: A few weeks ago I literally got my hands on the tool. The clamp attached to the screw handle broke inside the tool. It's doubtful that this can be fixed at the moment, but I don't think I'm interested in fixing it. The weight of the tool and air hose makes this a cumbersome piece of equipment when not working in a station. When it broke, I had to switch to a hand riveter (also Astro brand). For my purposes, a hand riveting tool is easier, faster, and requires less effort to unscrew the mandrel from a finished rivet. Downgrade from 4 to 2 stars. First Review: We use it for 5/16 inch rivet nuts. We've just made a few hundred of these rivets and this tool makes the process a lot easier and faster. We always had to make small adjustments to our rivet nuts to keep them sized within the correct tolerance range. , but after you've made a few dozen, it will be an easy process.