Eccentric 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.PTDTREDIR20X14TC