Snake inspired robots are nothing new. We have covered a few of them here in the past that can inspect pipes and other tight environments. The OCRobotics MiniX Snake-arm Robot is designed for inspection jobs in the gas and oil industry. It has a high zoom HD camera and can be quickly deployed to inspect inside pressure vessels.
These robots have a modular design. They measure 10mm to 50mm in diameter. They can be used for jet engine inspection too.