Ex-RAF Rigid Dual-View Borescope / Fibrescope for Operational Evaluation Unit

A high-precision military diagnostic tool used for internal aircraft inspection and maintenance, able to reach places usually inaccessible. 

It can be used to check for cracks, erosion or other damage to engine blades, look inside fuel tanks or wing structures for damage and to ensure hydraulic lines are correctly installed. 

This piece of equipment comes in a specialised storage container to protect it during transportation.