are there different size tattoo needles?
Tattoo Needle Diameters 35mm, diameter. #12 is one of the larger-diameter needle sizes available and the most commonly used size. ... You can also purchase larger #13 needles that have a 0.40mm diameter, smaller #8 needles, which have a 0.25mm diameter, or really fine-diameter #6 tattoo needles, which are 0.20mm in size.