The Crab Stitch can be used as a decorative edging for a variety of projects. It is also known as the Reverse Single Crochet Stitch. Today we’re going to go over a step-by-step picture tutorial of Crab Stitch. Practice, practice, practice and this stitch will be your new favorite edging! Without further adieu, let’s get to the Crab Stitch Crochet Tutorial.