pääkädellä

I’m not aware of an established meaning for the term “pääkädellä” in Finnish. The form as written is ambiguous and could be a misspelling, a dialectal variation, or a term used in a very specific context. For example, it could be interpreted as a compound related to “pää” (head/main) and “kädellä” (with the hand/on the hand), or it might refer to something entirely different.

If you can clarify the intended meaning or provide the context (field, region, or source), I can generate a concise, neutral wiki-style article under 300 words. For instance, if you mean the concept of the dominant hand in ergonomics or sports, I can produce an article along those lines. If you meant a different sense or a place/brand name, please specify.