1.Elegant appearance style,simple elegant modeling. 2.Stable performance and high quality can be used in environment. 3.Input voltage:AC110-120V,220-240V,50/60HZ. 4.Output voltage:DC2-15/18V,continuously adjustabe. 5.On/Off by hand or foot pedal. 6.Maximum rotation speed:25000RPM. 7.Available forward and reverse switch. 8.Safety configuration for over-voltage and over-load.