How do the Numbers for Hook Sizes work ?
Hooks are numbered from 32 to 1, with size 32 being the smallest, and 1 the largest. Then the numbering goes from 1/O upwards, the greater the number before the “O” the larger the hook. The “/O” stands for ocean. Most sea fishing uses hooks between 10 for mullet and garfish to 12/O for sharks. A 6/O hook is pronounced as a “six Oh”. Be wary that some different manufacturers use the same number scale, but a 2/0 of the same pattern from different manufacturers may differ in size.
