Let me tell you, this little guy is a game-changer for anyone working in cramped areas. I was skeptical at first—how could something just 7.5 inches long handle rivet nuts effectively? But the moment I squeezed it into a motorcycle frame where my old bulky tool wouldn’t fit, I became a believer.

The pistol grip design is genius. Unlike those two-arm monsters that make you feel like you’re wrestling an alligator, this lets me set M5 rivnuts with one hand while holding the workpiece with the other. Did my forearm get a workout? Absolutely—the compact size means less leverage, so prepare for some hand strength training. But hey, that’s the tradeoff for accessing impossible spaces.

Switching between metric and SAE adapters takes seconds—no fumbling with wrenches mid-project. Though fair warning: check the included sizes carefully (I had to order a 10-32 adapter separately). The steel construction feels premium, and after setting dozens of rivnuts, there’s zero play in the mechanism.

My only gripe? Astro cheaped out on storage. The adapters and rivnut assortment deserve better than rolling around loose in my toolbox. I solved it with a $5 plastic organizer—problem fixed.

For automotive work or anywhere space is tight, this tool outperforms its size. It won’t replace your full-size rivnut setter for heavy-duty jobs, but when you need to reach where others can’t? Worth every penny.