Using the Eraser tool, you can erase portions of your drawing by drawing strokes over it.
Just like the Brush tool, the Eraser tool is pressure-sensitive, allowing you to erase with more precision if you are using a pen tablet.
It is a good idea to create and save erasers with precise sizes and parameters in order to save time when drawing and designing. Harmony provides you with a variety of default eraser styles and allows you to create and save your own eraser presets.
Just like the Brush tool, you can use the Eraser tool on both vector and bitmap layers, and you can configure an eraser to have a solid or textured tip, to have automatic smoothing, a dual tip and a paper texture.