Long Series – 3 Flute – Metric | For optimum performance and maximum swarf removal when plunging, slotting and routing in light alloys, brass, aluminium, non ferrous and other soft materials. Manufactured to USCTi 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.