Now, attach your Hook. If you are planning to make the hook in the video instead of using a purchased hook, start making it now. Stop when you have made your first loop with round nose pliers (2:05 in the video). Slide your first Cotter Pin Link onto the loop of the hook, then wrap the loop closed, with the link inside the loop. Finish making the hook. Now, admire your new chain, necklace, or bracelet!