Cant remove support from shallow pockets

Ender Series Creality Ender-3 V2
1

I’m having difficulty removing the support materiel from a shallow 1.5mm depth pocket. The center mount for the turbine wheel shown below has a 1.5mm deep pocket. I have tried 2 different settings and still cant get the support out.

Any ideas?

Thanks John

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2

Those prints look very bad… what material did you print?

3

What setting did you change twice? What are your in-fill settings?