Round Liner Tattoo Needles/Cartridges are generally used for lining. The pins on round liner needles are soldered in a round pattern to create crisp, clean lining tattoo work.
The thickness of the line depends on the size you choose as well as the gauge of each pin. For example, #12 gauge round liners, which diameter of each pin is 0.35mm, are the standard ones for creating bold outlines like those seen in the American traditional tattoo style. Smaller configurations like #04 and #06 gauge are also commonly used for fine line or mini tattoo work.
Commonly Used for: Most of tattoo works, such as dot work, letter tattoo, neo-traditional and so on.