We'll have a whole house generator here at some point, John...'have to deal with selling the old property first and then make some other decisions. We're missing that big-time here, while darling daughter is enjoying the benefits at the old place with that 15 second changeover.
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The most expensive tool is the one you buy "cheaply" and often...
I've gone through that recently. Yes that screw is small. I used a couple tricks. One was to stick a 1/2" magnet on the screw driver shaft. That induces some magnetism in the screw driver bit. Installing an NvME drive in a tower case that wasn't enough. After dropping that tiny screw a few times I cut a scrap of paper about 1/2" X 2". Made a hole near one end with a straightened paper clip, stuck the screw through said hole. Now I had a handle to hold that tiny short screw. Once the screw started I just pulled the paper out and tightened the screw. You can buy those screws on Ebay & Amazon, I bought a few to keep on hand.
Wiping a strong magnet on the shaft, moving from a couple of inches from the end and continuing until the magnet is off the end, will magnetize most screwdrivers. There are tools for magnetizing/demagnetizing, have one but never use it: https://smile.amazon.com/Delcast-Mag.../dp/B00PBCDRN4
If all else fails, soften a spec of beeswax between your fingers and press it onto the top of the screw.
JKJ