If you don't have any tools, you can use a lubricating spray. It can loosen nuts that are stuck. It may take a few minutes, but it can be done. Once you've loosen the nuts, you can then remove the faucet. If it's really stuck, you can use a basin wrench or pliers to remove it.

Once you've removed the old rusted brushed stainless steel tapware, the next step is to install the new one. You should make sure that the new faucet is properly fitted to the sink. Before you do this, you should place the new faucet's gasket over the sink's plumbing holes. You should also apply plumber's putty to the new faucet's mounting nuts. You can also make adjustments to the faucet to make it face properly.

Before you start removing the faucet, make sure that you wear protective gloves and eye protection. You should also make sure that you have a proper sized wrench so you can remove the nut with ease. Also, make sure to cover the area of the sink with a thick towel to prevent the faucet from falling.