CROCHET HOOK SIZES
It is important to note, that not all crochet hooks are created equal. A 6mm hook in one brand, may not be exactly the same size as a 6mm hook in a different brand. This only one of the reasons why checking gauge is so important with your crochet projects. When a pattern calls for a certain hook size, this is a recommendation based on what the designer used personally and does not neccessarily mean that you will achieve the same gauge with the same size hook. For more information on gauge and why it is so important, check out this blog post.