What kind of VDF should i buy for my cnc mill. I will be milling aluminum Should i buy a constant Torque or a Variable Torque Here are the two options i was thinking. Spindle suggestions would be great too WJ200-022SF 3HP 2.2kW 230V Single Phase Input VFD - Hitachi WJ200-022SF: Constant Torque, Sensorless Vector, Single Phase In NES1-022SB: Variable Torque Hitachi 3 HP, 2.2 kW, VFD VFD NES1-022SB, AC Motor Drive
