noun
crochet hook; hook
Specifically a small hook used for crocheting. The broader sense 'hook' is understood but the word is almost exclusively used for the crochet tool.
かぎ針でマフラーを編んだ。
I crocheted a scarf with a crochet hook.
このかぎ針は細いので、レース編みに適している。
This crochet hook is thin, so it's suitable for lace crochet.
Compound of かぎ (hook) and 針 (needle). The reading かぎばり is a straightforward combination of the two elements.