On this page you can find free crochet patterns using size 3 mm crochet hook. This crochet hook is also known as the UK: 11.
There is no US size equivalent to this crochet hook size. See the full size chart here, and learn more about the different crochet hook size systems.
The 3 mm crochet hook is great for fine yarn and lighter projects. It is often one of the smallest in crochet hook sets.