Where do you buy small magnets with holes? Welcome to contact Dongguan Guji Magnet Factory (China), our company has been established for more than 12 years, we can produce all kinds of ultra-small sized round neodymium magnets with holes, such as outer diameter 3mm, 5mm, 6mm, 10mm, thin ring magnets with holes, cylindrical magnets with holes, the internal aperture can be large or small, depending on your product application, high precision, tolerance can be controlled ±0.02mm...