Wind back direction for the piston is typically reversed from side to side on the car – so ideally you need 2 variants of wind back tool, or fiddle about a lot on one side. Often easier if you crack open the bleed nipple on the calliper too – this also avoids back-flushing seal wear debris into the ABS unit (which can lead to very big bills).
I can never remember which way to turn the pistons on my wife’s car – have to use trial and error each time. At a push you can do it with a pair of long nosed pliers, but the wind bank tool does help.
If the handbrake cable connects to the callipers, the piston will need turning to wind the internal ratchet back down the threaded shaft. If the car has separate brake drum/shoes for handbrake, then no need for winding back – just push.