Image shows: emulsifier with a 1.5 and 3mm drill bits show the internal sizes of the tube.
Getting one out with a ruined slot, without damaging it is the challenge.

You have 5mm to tap into before reaching the first small holes.

I was thinking of tapping this bolt in. But then what?
I know anything can be fixed if you think about it long enough.

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To clean it in place you have a few paths to spray cleaner into. I find a bent nozzle tube helps.

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Happy is he who penetrates the mystery of things.