OTC convertible 90 Degree, 90 Diameter Tip Snap Ring Pliers Snap-ring pliers are a tool designed to install and remove snap rings, which are small metal rings that hold in a bearing or other assembly item by setting into a machined groove. The snap rings are common in car engine parts as well as in motorcycle and bicycle shocks and forks. While the snap-ring pliers are not a tool that will be used often, they are an important addition to a tool box because a snap ring is difficult or impossible to remove or install without them.