Groove milling tools | CoroMill® 331 CoroMill® 331, adjustable cutter for half side and back face milling​​ Bore with keyway - External coolant supply Metric (mm) Ordering code DC DCONMS DHUB BD LB LF CDX THUB TQ RPMX [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [Nm] [1/min] L331.52-200S50MM 200.00 50.00 69.00 195.0 26.6 29.20 64.5 31.20 3.0 9600 L331.52-250S50MM 250.00 50.00 69.00 244.0 26.6 29.20 89.5 31.20 3.0 8500 L331.52-315S60NM 315.00 60.00 84.00 32.80 114.5 34.80 3.0 7600 R331.52-200S50MM 200.00 50.00 69.00 195.0 26.6 29.20 64.5 31.20 3.0 9600 R331.52-250S50MM 250.00 50.00 69.00 244.0 26.6 29.20 89.5 31.20 3.0 8500 R331.52-315S60NM 315.00 60.00 84.00 32.80 114.5 34.80 3.0 7600 R = Right hand, L = Left hand 280