Trend D-Namic two flute cutters with extra long Shank s for deep grooving rebating & morticing which are useful for template work when thickness of template restricts depth. Extra care must be taken to avoid breakage. Take more passes than usual & only cut up to half the diameter of the cutter in one pass. C = 12 mm. D = 19 mm. 15/32 in. OL = 66 mm.