You won't have to worry about over tightening the Smartbolt, as it features a "visual tension indicator that starts out red and turns" darker when tightened. No word yet on pricing or availability.
This is a useful invention, showing you the actual tightness of a bolt rather than relying on a torque wrench's measurements, which can be off by as much as 30%.
[via Dvice]
Read More...
[Source: Tech Blog]
