Sorry for the delay in responding Hal.
One tool fits all. The long arm of the cocking rod must be ROTATED DOWN using the opposing cocking rod arm as a lever.

[Linked Image from photos.smugmug.com]

[Linked Image from photos.smugmug.com]

It takes some effort as you are working against the force of the mainspring, and you will feel a "click" when the hammer is cocked.

What did you find in the innards of your friend's Smith?