These are made from a single piece of High Speed Steel, ground with a very fine edge. They are only suitable for non-abrasive materials, but will give a superior finish in soft timbers. Generally less expensive than TCT cutters, but can be more suitable for certain applications.
Applications: Routing non-abrasive natural timbers and plastics.
This is a specially developed grade of High Speed Steel, precision ground to the highest tolerances. HSSE grade cutters are used for specialised applications, typically in the window industry for machining aluminium and uPVC extrusions.