Aluminum Trimmer Machine ID-WT-6DC Trimmers differ from plunge routers in that they do not have a spring-loaded plunge action, and are instead classified as fixed base routers. Originally intended for flush trimming of edges, some of the advantages they provide are that they are generally smaller and lighter than dip routers (making some of them battery operated) and they have less gravity. The bottom is center, which means it can be easier to keep them balanced when routing the edges,
