Craftsman sold a couple versions of these molding heads; I have one (that was my father's) that has three cutters of each style instead of one. The single cutter of course only takes one cut per rotation vs. three, so you need to be more careful and slow with the feed rate as Miss the Pontiacs suggested - feed the stock very slowly. These molding heads were essentially made obsolete with routers, but they still work and will do the job for edge profiling. Hope you have a nice old Craftsman Table Saw to use it on!