DN100 magnetic dust collection coupling

A DN100 magnetic dust collection coupling for my planer. It consits of three parts. Part 3 has to be glued in part 1 to have a better alignment of the coupling.I used the following magnets: https://www.amazon.de/Magnetpro-Rechteckmagnete-Industrielle-Topfmagnet-Schrauben/dp/B08F54YGC9/ref=sr_1_5?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dib=eyJ2IjoiMSJ9.CgOgv1F9GSooYEQ6xPDWS5HXwmhXsIYLFSkMuwI3vCxYhPs9cFRr0yZi0LWmGjqEfNRBpXrVIcQUJntxPpTslLGcJTKMRtMyNbqJVo2Vt-3HVqYnG2bqFFK8VvuMGgUvnUQRzosYw2j_9XsuTTdrN3DiIRCWb4To9Dw8JHKBUZP3XMEq7bgdlUvngqpY_w8uurvllTDml0XA-Po6RUfW50uFOMzhD4vn0btnOfYr64Q.9KvJHrYL3OrJ7pKwAmMCEAhWJkNJSXO_CGAeHXMmDMY&dib_tag=se&keywords=magnet+loch+rechteck&nsdOptOutParam=true&qid=1733846405&s=books&sr=1-5