This is a drill respooler that fits the AMS spool published on my page. Additionally, this will work in just about any reusable spool, including OEM bambu spools. It is made of PETG and contains about 65% infill, so it is super strong. I would recommend post processing some chamfers on the threaded parts in order for the threads to work flawlessly. Threads are class 1A and work really well once the chamfers are applied. The Respooler will require a 3/8 socket adapter to chuck into your drill. So far this respooler works great.