Muzzleloader Multi-Tool for Comment

[Berkley]

Originally Posted by Fernando K

With respect, we would like to know why and how they used each of the pieces or parts ....

This Pattern 1853 appurtenance was officially termed a nipple wrench .
The various tools are nipple wrench, cramp (for compressing springs), pricker (for cleaning flash hole of percussion nipple), drift (for driving out pins), worm (for removing patches), ball drawer, and screwdriver.
There were seven different patterns of nipple wrenches, issued to privates and sergeants. For details, see .577 Enfield Rifles & Carbines by Ian Skennerton. pp. 191-196.