This little dynamo has a specific use for me, being able to get into those tight, restricting spaces a larger tool has difficulty accessing to get the job done. If needed it allows you one hand operation and I don’t have overly large hands (about 3/4 Michael Jordan hands lol).
https://www.amazon.com/Milwaukee-12-Volt-Hackzall-Recip-2420-20/dp/B001F7B1AK

