Every Faithfull router cutter tip is made from tungsten carbide, brazed onto a steel body Designed to cut a wide variety of timber and abrasive material such as MDF and plywood With careful handling and under normal conditions, they will outlast HSS grade cutters many times The manufacturing specification for Faithfull router bit cutters ensures that they are suitable for use by all professional trade and craft users as well as DIY enthusiasts All Faithfull router bits are balanced during manufacture to ensure vibration-free operation