Too long to read. Some gears are nylon, yes, which is strong. I didn't get juvenile. I told you to watch teardowns. I don't keep a back catalog of every device with metal gearboxes, sorry.

Also! Way to completely flip the responsibility to on me. Very un-juvenile of you! I wasn't addressing "what tool should I buy", I was addressing "plastic gears are there to protect my drill/impact".

The shopping aspect was uninteresting to me to begin with and was not what I was joining the discussion for. :)