Tools needed to unmount bike pedals My two pedals are squeaking a bit and probably need to be lubricated. But, I'm not sure which tools I need to buy to unmount them.

What's the size of the square drive sockets to get to unmount the pedals? After googling the pedal size I see that the majority are 9/16", but the square bits are usually in mm. Is 14mm the right size?
I suppose an adjustable wrench will also prove useful to remove the pedals from the crankset. Is there another component needed for that?

Below is a small picture of the pedal in question:
Look on the inside of the crankarms, where the pedal threads into the crankarm, if there is a socket for a hex wrench. Cheaper pedals don't and I'm guessing these don't.

Pedals require a narrow spanner, as indicated by Willeke, thus an ordinary adjustable wrench ... could work but probably won't. Google around for pedal spanners to see how the professional ones look like.

Lastly, I once again agree with Willeke to try and oil them in place. Even if you removed them, disassembling a pedal can be a challenging and tool-requiring business.