Groove milling tools | CoroMill® 331 CoroMill® 331, adjustable double half side and face disc milling cutter​​ Bore with keyway - External coolant supply Metric (mm) Ordering code DC DCONMS DHUB LF CDX CW THUB TQ RPMX [mm] [mm] [mm] [mm] [mm] [mm] [mm] [Nm] [1/min] N331.52-250S50MM 250.00 50.00 69.00 29.20 89.5 27.20 31.20 3.0 8500 N331.52-315S60NM 315.00 60.00 84.00 32.80 114.5 30.80 34.80 3.0 7600 R = Right hand, L = Left hand 282