The wall on that tool is too thick. Didn't work on the 2nd Glock I tried it on. Nope... don't remember which Glock that was.Get a tool made from steel, not those lousy ones with aluminum hex ends...
Here is a quality front sight tool:
https://www.amazon.com/TRUGLO-Glock-Front-Sight-Installation/dp/B07DH6G3JQ