25,000 to 90,000 rpm with power to 1.4 HP.
The 660 Series is ideal for heavier duty applications and milling hard materials in corners. The 660 features a higher governed constant speed at 50,000 RPM and even higher power at 0.94 HP (0.70 kW). The 660 mills faster in all materials, including tool steel, titanium, and ceramics reducing cycle times dramatically. For long life milling in hard materials, the robust 660 Series is equipped with ceramic bearings. Negligible thermal expansion and dramatically improved cycle times – NO duty cycle. Selectable twin air feed inlets – side NPT or through HSK shank. Multiple mounting options

