Anyone know what this vintage tool is?

[Bbillcee]

i think it uses a hand held power threader to drive it? ‍♂️photo

 

[Reach4]

I think torque multiplier. I presume there is something that can mount a socket or wrench on the other side.

Torque Gear Multiplier Porta-Drive Mucnie Gear Works A-1 Pipe Thread Reducer | eBay

Model A-1. Works, turns freely, handle has been repaired.

www.ebay.com

 

[Sponsor]

 

[hj]

That square broach could indicate it is to drive a 141 or 161 die using some sort of power tool.

 

[Fitter30]

Can't pull the pic up