Dust and waterproof tool case to IP 67, stackable, break and impact resistant. Resistant to acids and for temperatures of -33°C/+90°C. Equipped with a document compartment, an ergonomic two-component handle and hinged fasteners for optional padlock. The case is equipped with a manual pressure equalisation valve for overpressure equalisation. The all-round O-ring seal in the lid protects the contents of the very stable and robust case.