Way back when put in the feedlot and wired the waterers for the heaters,
Dad used a crimp-on connector that went around (stripped section ~1"
long) 4 GA AL feed and allowed a #14 to #10 pigtail to be joined for the
individual boxes without having to cut the main feeder.

I'm needing to add a new connection and can't find anything similar nor
think of exactly what to call it to search...anybody got a clue or lead
to one?

I'd really like to not have to insert a splice...

--