Replaces the need for sets of metric and imperial Spanners. Smooth jaws for damage free installation of plated fittings - working directly on chrome. Ideal multi-purpose wrench in pocket size.
For an aircraft mechanic they are essential. For hydraulic lines in hard-to-reach places, simply tighten the nut to torque. I just wish I could get the whole set. The only disadvantage of knipex is the cost.
Pros
Smooth jaws for damage free installation of electroplated hardware - Work directly with chrome