Of course

Machine is a DIY mini-mill router built specifically to cut aluminium. Spindle is a 2.2kw water-cooled job.

My 2mm tool normal feed/speed is 24000rpm, 370mm/min, mostly profiling, 0.2mmWOC, various DOC - cutter is rated to 3mm maxDOC. 0.01295 chip-load.

But the feed rate in the makers data is
23000rpm, 0.065 chip-load, 1500mm/min

Now this chip seems frighteningly big for a small tool, i tried it and it snapped after a short time.

I just got a reply from the dealer and it seems runout may be a problem here, i will measure this tonight - its quite possible as all my stuff is not top-end tooling so could be bad spindle, bad collet, etc.

Still, 1500mm/min on a single-flute tool slotting is pretty harsh i think?