For inflating balls, there are ball pumps that cost much less (less than CHF 10.-). I have such a pump and it works perfectly well!

my various ball pump spacers all do not fit on the pump

The BBB Samurai BMP-50 is suitable for the following valves:
Presta
Schrader
Dunlop
Provided the valve for inflating balls is fitted with the appropriate thread, balls can be inflated.

I use the pump for my bikes. Works very well for SV - Sclaverand valves or French valves.