Whether it’s an engine block ... check out the list below of some of the best borescopes on the market. BEST OVERALL: Teslong NTS300 Pro Inspection Camera ↓ Jump to Review RUNNER-UP: Ridgid ...
into a car engine or somewhere else when you're working on it, a borescope (a lot of people say 'endoscope' but that's a more medical term) is the way to go. I've looked at the best boroscopes ...