We may receive a commission on purchases made from links. You can live with things for a long time and never see them, especially when it comes to issues like water leaks, insulation voids, or ...

If you want to look behind a sink, 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 ...