One-off small scale cutting/machining recommendations

[R9000]

I'm honestly not sure, you'll have to ask what they have in stock at what thicknesses. My parts were Hardox 500 though, and that stuff is tough. Oh! And something to bare in mind, from my experience they always cut holes slightly smaller than they should be. Not that it should be a problem for balancing parts or weight saving, but for example, I've specified M5 and M10 holes and had to drill them out to be able to fit the bolt through. I've never spoken to them about this, but maybe you want to specify a little larger if you don't want to do any extra drilling or grinding. Just be careful I suppose.