To help you get those steel liners out of those aluminum barrels, use the
blue wrench.

Heat the aluminum to verrrry hot with a propane torch then fill the
offending liner with ice.

Mumble incantations suitable to your mood and local laws.

Pink!  ( the usual announcement that the recalcritant part has submitted to
the laws of fizzix regarding expansion coefficents  of dissimilar metals )

Now restrain thyself grasshopper, that barrel is still ROARING hot.  (DEF:
roaring hot.  the sound you make when you touch something this hot with bare
skin)

Blue Wrench.  Just ask your local farmer.

p