What the heck is up with that quick release ******? It doesn't look like it's threaded in at all but a pipe is shoved into its thru hole?
Used in assembly work on assembly line and usually used with it on a counterbalance so that the operator doesn't get ergonomic injuries from its weight.
I don't think it is really used on assembly lines. It could be, but most assembly lines don't have need for a reverse. Then again, they might not have had a comparable screwdriver without the reverse.