round neodymium 20X3mm disc magnet, highly powerful magnetic

The round neodymium disc magnet is a highly powerful magnetic component, widely used across various fields due to its exceptional holding force and compact size. It is commonly found in electronics (sensors, speakers, electric motors), mechanical engineering (locking systems, fastening devices), the automotive industry (position sensors, wiper motors), as well as DIY and rapid prototyping projects. For example, these magnets are often used to create magnetic tool holders, door closures, or even homemade electric generators. They are also popular in robotics for position detection or for building precise movement mechanisms.