Trend 2/10X1/4HSS Single flute cutter 2 mm diameterSingle 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.For fast free cutting , these HSS cutters have extra clearance.Specification-D=5/64 inchD=2 mmC=5 mmOL=51 mmShank Diameter=1/4 inch