It's okay. You didn't know. Finger tightening a bolt only tightens it to .182ft/lbs. Which means the bolt is loose again before you're even lowered to the ground, passing the problem on to the next climber. Next time, take the Crank Brush on your chalk bag. You'll be prepared for everything the crag throws your way: greasy footholds, slippery slopers, chalk-caked crimps, and of course, loose bolts. The Crank Brush can tighten bolts to 20ft/lbs, securing it properly for many falls to come.

The Crank Brush is made of glass-filled nylon so it's strong enough to crank on a bolt. It's narrow enough to fit into the holster of most chalk bags. And it features premium boar's hair bristles to renew friction to even the nastiest holds outside and at the gym.

Check out the article by climbing magazine: https://www.climbing.com/gear/unique-find-a-brush-that-tightens-bolts/