I recently replaced the front wheel cylinders on my truck. Old ones had 3/8 inch bleeder valves. New ones have 10 mm. I expect yours use the SAE version.
Note: I bled my truck’s brakes using the gravity bleed method per a suggestion here, and found it is very easy to do and works well. It’s a trade-off between how long it takes to complete the job and the ease of doing it. I used the extra bleeding time to do other stuff is all.
I bent one of my wrenches (on purpose, using a vise) to solve an interference problem for the wheel-cylinder/brake-hose attachment fitting. If you are looking for an excuse to buy more tools, I’ve been using flare-fitting wrenches for brake work, seems to makes the job a little easier.