GALAX PRO Cordless Sander 20V, Detail Sanders, 20Pcs Sandpapers,12000 RPM Sanders with Dust Collection System for Tight Spaces Sanding in Home Decoration, Battery and Charger Included

['Copper Motor: Low resistance feature of the fine copper motor ensures it delivers less heat and more power than general copper-clad aluminum motor; Accumulation of dust would damage the motor, so we adopted dust-sealed switch and sensitive thermovent to prevent wood dust from entering inside, which will drastically extend the sander’s lifetime', 'Copper Motor: Low resistance feature of the fine copper motor ensures it delivers less heat and more power than general copper-clad aluminum motor; Accumulation of dust would damage the motor, so we adopted dust-sealed switch and sensitive thermovent to prevent wood dust from entering inside, which will drastically extend the sander’s lifetime', 'Copper Motor: Low resistance feature of the fine copper motor ensures it delivers less heat and more power than general copper-clad aluminum motor; Accumulation of dust would damage the motor, so we adopted dust-sealed switch and sensitive thermovent to prevent wood dust from entering inside, which will drastically extend the sander’s lifetime', 'Copper Motor: Low resistance feature of the fine copper motor ensures it delivers less heat and more power than general copper-clad aluminum motor; Accumulation of dust would damage the motor, so we adopted dust-sealed switch and sensitive thermovent to prevent wood dust from entering inside, which will drastically extend the sander’s lifetime', 'Copper Motor: Low resistance feature of the fine copper motor ensures it delivers less heat and more power than general copper-clad aluminum motor; Accumulation of dust would damage the motor, so we adopted dust-sealed switch and sensitive thermovent to prevent wood dust from entering inside, which will drastically extend the sander’s lifetime']