Since the cable connection is soldered and contacts are designed to be pushed in by hand, no tooling is required for wire attachment or assembly. There are two tools for the Kona range: the removal tool (ZA1-9040000) if a cable contact requires removal and replacement, and the slotted screwdriver (ZA1-9020000) to tighten or loosen slotted nuts KA1-4240000 on the mounting studs. Tools and nuts are available separately. Instruction sheet IS-49 includes instructions for assembling and removing cable contacts.