Or tool adjuster, tool adaptor - but seriously, verktøykorrektør isn't a Norwegian word, let alone an established job title. At best, it could be a clumsy description of a function performed as part of someone's job, but 'korrektør' is a contrived word. To translate it would require information about what about the tool is likely to need correcting, and/or what means the tool fixer has at her disposal.