Trend 2/3X1/2TC Single flute cutter 4 mm diameter Eccentric single fluteEccentric single flute cutters. Cutters are chosen for fast free cutting, when cutting speed takes preference over finish. Cutters with prefix S are Solid Carbide. Cutters of 2.0mm diameter and below should have a maximum of 1.0mm depth of cut per pass. Small diameter tools must be handled with care to avoid breakage. Single flute cutters should not be used in eccentric chucks.Specification-D1=5/32 inchesD1=4 mmC=11 mmOverall lng.=63 mmShank Diameter=1/2 inch