They can but can you guarantee it? Hand tools have a much smaller footprint compared to the mix of metals and plastic that go into power tools. You can buy 100 year old hand tools that work just as well as new ones too so they've got the whole recycle thing going for them.

It's too nitpick. If I think too deep, your body needs more energy if you don't use electric tools, so you need more foods to feed energy but perhaps every foods aren't carbon neutral for farming tools, fertilizer, and transportation.