Rotary tattoo machines are a type of tattooing device that use a rotating motor to drive the needle. Unlike traditional coil machines, which rely on electromagnetic coils, rotary machines offer a smoother and quieter operation. They are often preferred for their lightweight design and versatility, making them suitable for various tattoo styles. These machines can be adjusted for different needle depths and speeds, allowing artists to create fine lines or bold shading with ease. Many tattoo artists appreciate rotary machines for their reliability and reduced vibration, which can lead to a more comfortable experience for both the artist and the client.