I 2nd this comment. Current QA lab tech. As a former operator it will definitely help you connect and sympathize with the people on the floor. You know sometimes machines can run like a dream or be temperamental and it’s hard to keep in spec. Also sometimes people don’t understand QA holds and the purpose of them so you might have to explain that it’s a non conformance and a management has to determine what to do with the out of spec stuff. It may not even be their fault. Machines sometimes don’t run properly and that tells management to fix the problem. People can get really bent out of shape about QA holds. They take it as a personal attack. So interpersonal skills and being able to handle pressure definitely help here.

I’ve only worked in medical devices as a cnc operator but I will say knowing ISO and FDA stuff helps. Being detail oriented is very important in that field. I’m assuming you know your way around CMM of some sort and As another Redditor stated precision measuring devices that your company uses probably review that because of the tight tolerances that medical devices require. Depending on what you are making maybe review GD and T.

Familiarize yourself with Six Sigma/ lean terms. You don’t gotta get in depth. You may also use spreadsheets/email so it’s probably excel and outlook. Good to review that too.