Use these kits for everything from permanently marking materials to cleaning and finishing surfaces. They come with all you need to get started, including an engraver, four types of tips, and a tip holder. The engraver is more powerful than an electric option, so you can make the same markings in fewer passes and with less effort. A continuous dial lets you adjust the stroke speed to control the depth of your marks. Low stroke speed creates shallow lines and is best for soft materials, such as wood and plastic. High stroke speed creates deep lines and is best for hard materials, such as metal. When swapping in another tip style, you must secure it in the engraver with the included tip holder. These engravers need lubrication to work properly.