tools

I am a First year apprentice plumber. I work for 2 different plumbers and a general contractor, as my full time employer has been slow. I have worked in various construction industry's over my working life. 6 years. Currently mid 20s in age. I have purchased all my own tools over this time...

Tightened this up by hand, then tightened the screws down. The faucet still has too much play in it. There is no room to get any conventional tool on the nut to tighten it. I bought a faucet tightening tool from Ridgid, but the nut is too big for the tool. Any pros out there know the magic tool...

I had a dishwasher installer come in with my new dishwasher and he said he couldn't install my new dishwasher because it needs a pressurized fitting on the line and he doesn't have the tool to do that. So I need to get that done before he can start the install. Can any one tell me what the tool...