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The slots in the fan duct are 2.3mm wide (Hero_Me_OEM_4010_Duct_gen2g). This is not designed for m3 screws. But the holes in the base are for m3 screws. While trying to drill the slots, this tiny part just broke. Had a really bad evening yesterday...
Imho the holes in the base should be smaller to fit the original m2 screws of the 4010 fan.