Should you specialize in a tool or a result?

[Btaliat]

A freelancer must learn how to choose between results and tools. Most times, while tools may sound high paying, especially for some freelancers that have much knowledge about the niche. However, results may seem better because most people focus more on results than the tools. If you are to advise a freelancer to choose between focusing on the tools and the results, which one will you advise him to choose? Share it below in the comment section.