Bernstein technik electronics technicians service case bernstein 6400 the technik tool case from bernstein can accommodate all the equipment needed for engineers on the move made from moulded impact resistant black textured plastic with a sturdy aluminium frame this modern service case is dustproof and rainproof and acid and scratch resistant the technik is supplied with 82 specialist tools which can be stored for easy access in slots on 3 removable tool trays there is also a do