👉 Gravelling is a method of engraving or writing on wood, which involves applying pressure to a surface using a tool made from metal. The tool is called a "gravell" or "graveling tool," and it can be used for both engraving and lettering. In the case of gravelling, the tool is applied to a surface by pushing down with an electric or pneumatic force. This technique allows for precise control over the surface and provides a smooth, even finish that