Making a Part: Bioreactor feeder ports

Grinding a threading insert for a PG13,5 thread: https://youtu.be/jg7nhY7n9uY Visit my website for FAQ, a list of my machines, my products and some project documentations: http://gtwr.de/ Consider supporting me on Patreon: https://www.patreon.com/stefangtwr I post very regular on Instagram: https://instagram.com/stefan_gtwr/ #practitioner_of_the_mechanical_arts