Trend 3/5X3/8HSS Two flute cutter 9 mm diameterTwo FluteThese are made from a single pce 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 HSS cutters are slightly less expensive than their TC grades, but can be more suitable for certain applications.Suitable for general grooving and rebating.Specification-D=23/64 inchD=9 mmC=19 mmOL=45 mmShank Diameter=3/8 inch