This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
鋬 is a rare character. It visually combines 金 (metal) with a top component resembling 反, but the exact historical development is uncertain.
The kanji has metal 金 below a hand-like top. Without a clear meaning, picture a metal handle or cord (ひも) being pulled by a hand.
For ハン, imagine a hand (ハン sounds like 'hand' without the 'd') gripping a metal cord: hand -> ハン.