LeighMo wrote ...

You will need a few tools to retrofit the hood. You can probably borrow a
drill from someone, but you may need to buy a
special bit that can drill really big holes.

If you install the end vents included in the AH Supply kit you'll need a 1"
hole bit. But if you're retrofitting an All-glass hood you don't really
need the side vents because the hood is already vented all along the top.

kush