In addition, to learn how to tattoo you will also need various needle supplies such as regular needle bars to hold the main needle group as well as a needle jig, needle bar jig and a soldering gun and stainless solder. Naturally, you will also need various colored inks as well as black ink. If you plan to do flash sheets you will also need watercolors and pencils. It is important to note the importance of taking proper safety and sterilization precautions when you learn to tattoo. An Autoclave is used to sterilize most tattoo equipment by steaming it at very high pressure.