the b series is the most robust, precise and productive machine in the complete muitiax line of cnc routers. designed and built to run 24/7 for the most demanding cnc users in the wood, n/f metals, plastics and composites......the b series is the most robust, precise and productive machine in the complete muitiax line of cnc routers. designed and built to run 24/7 for the most demanding cnc users in the wood, n/f metals, plastics and composites industries. the b series features a heavy duty construction, oversized, to deliver long-iife reliability and consistent high precision.