Both 24mm.
I've always removed the nuts with an impact gun but always put them back on with a torque wrench. Be careful if you are going to put the nuts back on with an impact gun, one mistake especially with the nut on the variator, you will be looking at a very high repair bill to replace the crankshaft.nitrogary said:just an extra note here...if you are using an impact whether it be air or electric, you really wont need the variator holding tool. I use an air impact and I just zip them on and off.