抓机
抓升钩
铁钩

[ noun ]
a tool consisting of several hooks for grasping and holding; often thrown with a rope
<noun.artifact>

Grappling \Grap"pling\, n.
1. A laying fast ho1d of; also, that by which anything is
seized and held, a grapnel.

2. A grapple; a struggle. A match for yards in fight, in
grappling for the bear. --Dryden.

{Grappling iron}, a hooked iron used for grappling and
holding fast a vessel or other object.

{Grappling tongs}, broad-mouthed tongs for gathering oysters.