Herrenknecht is a tunnel company in Germany.
They are located right next to the border of France (Strassbourg) in the city Kehl.
The company makes big drills for building tunnels.
We visited the company tuesday the 7th of February.
The company has 30-40 projects a year.
They are a very sustainble company.
They reuse parts of old drills in new drills after each project. To be exact they reuse about 66% of the components.
The parts are being brought on boats to the company.
They use almost all of their space to store their parts.
If they do just a little thing wrong, they can risk being set back 3-5 months, so everything has to be very precise.