【Precision rotating shaft】 This electric mill built-in precision bearing and extended rotating shaft integrated design, effectively improve the concentricity of the electric mill rotation, easy to achieve accurate drilling and engraving 【Three-gear speed regulation】 Power control switch, press comfortable, high sensitivity, simple and convenient operation 【Unique design】Three-dimensional non-slip slot, comfortable and non-slip, easy control of the fuselage 【USB charging】 It can be used while flushing 【Wide application】Suitable for small and medium-sized carving, micro carving, peeling grinding, wood cutting