I have seen before on this forum the advice that if you are granite templating, or installing the granite, but you don't yet have your faucet (it's on backorder, or you just haven't chosen it yet), you can just use your old faucet or any cheapo faucet in the meantime until you get the faucet you want. So, does that advice mean that all faucets' mounting holes are the same standard diameter? Or maybe most of them are the same diameter? If so, what is that standard measurement?

What about pre-rinse style faucets--are they still a standard size mounting hole? Or European-made faucets like Grohe or KWC--would they have the same mounting hole diameter as an American-made kitchen faucet? I would think this dimension would be important for countertop templating. Like, what if you have an old Kohler, and you haven't chosen your new faucet yet, but you know it's going to be a sleek European something--can you just use the same mounting hole size? I would appreciate anyone's info on this!