What is the most common form of tattooing machinery?

• A. Coil machine
• B. Pneumatic gun
• C. Rotary pen machine
• D. Laser device

Answer: (C)

Rotary pen machines are the most common form of tattooing machinery in cosmetic/studio PMU because they offer smooth, precise control with a lightweight, ergonomic design. The motor drives the needle in a steady, linear motion, which helps maintain consistent depth and shading—crucial for fine lines, brows, and lips. Their use of disposable cartridge needles also makes hygiene easier and faster, reducing cross-contamination risk and downtime between clients. Compared with coil machines, rotary pens tend to vibrate less, run cooler, and be easier to handle during long sessions, making them a preferred choice for delicate facial work. Pneumatic guns exist but are less widely adopted in cosmetic tattooing due to handling and consistency concerns, and laser devices are not used to deposit pigment at all.