Kitchen sink fittings don't have consistent thread sizes, so when a friend wanted a spray attachment for his sink mixer - this is what happened!
It may or may not fit your tap, but if you are prepared to waste 4gms of filament to find out, here's how!
I've included gcode for PLA and PETG, I prefer the latter but both seem to work well enough sliced at 0.1mm (DETAIL) with supports only in the spanner slot - PrusaSlicer v2.4 does a super job of this.
The author marked this model as their own original creation.