Regular Series | For maximum strength when milling harder materials where rapid swarf removal is not needed. Four flute milling cutters have one of the strongest tooth structures available in solid cutters. Centre cutting as standard. Manufactured to ANSI Standards. | | Metric Tolerances | Diameter: Over 1.00 ~ up to 6.00. Tolerance: +0.000, -0.050 | Diameter: Over 6.00 ~ up to 25.00. Tolerance: +0.000, -0.080