I have the Lee Valley plane screwdriver
https://www.leevalley.com/en-us/search#q=plane%20screwdriver&t=product-search-tab&sort=relevancy&layout=card&numberOfResults=25
It is a very handy tool for the screws that are found on the cap irons of planes, especially if you are trying to remove rusted screws from an old plane blade. They are not very helpful for other uses.
The most important thing about other screwdrivers for use on planes is that the thickness of the screwdriver blade is a tight fit in the slot whenever the screw is stuck in place.
Ken