what is a circlip?
Shop for Circlip Pliers. A circlip is a type of retaining ring or fastener that takes the form of a flexible, open-ended ring, made from metal.ifferent types of circlip. Although there are many variations of circlip, as they have so many different applications, there are a few basic designs you will come across. Most of these retaining rings have a design of circlip pliers which can be used with them. However, some may need a different tool.