any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks

an implement used in the practice of a vocation

a power tool used to buff surfaces

rotary file for smoothing rough edges left on a workpiece

a power tool used for sanding wood; an endless loop of sandpaper is moved at high speed by an electric motor

a power tool for drilling rocks

a power tool for smoothing or shaping wood