Your favorite tool....

One of these?
Just got one, myself.
Probably won't use it that often, but glad to have it around, when i do.
Good tool.

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Think mine is the 18 volt,perhaps 20 volt. Had it in my hand today. For a laugh i stuck the resonator from a 2014 silverado onto a 69 ford 390. Grinder made it easy. Gave it a nice tone. So its staying.