The H lock seems very close .
Or the Aero Space fastener tool. ( the nut cert tool )
A wobble broach tool looks close also.
The dark part that spins would have to be hollow to go around the nut.
This is solid then making the nut recessed.
The whole end unscrews off of the tool (Silver End)
possible it would take a drill chuck.
The Guy that had these tools was a prop master for Disney.
So maybe it is an Aero Space tool used for adjustments on Space Mountain.
Or the Aero Space fastener tool. ( the nut cert tool )
A wobble broach tool looks close also.
The dark part that spins would have to be hollow to go around the nut.
This is solid then making the nut recessed.
The whole end unscrews off of the tool (Silver End)
possible it would take a drill chuck.
The Guy that had these tools was a prop master for Disney.
So maybe it is an Aero Space tool used for adjustments on Space Mountain.
Heavy Metal Illness