Reusable paper-roll core-chuck with interchangeable fins

A method of using a core-chuck device within a paper-roll having a core, said core having a first end and a second end, said core-chuck device having

• a) a central-hub having an outer-surface and an inner-surface, said outer-surface including a plurality of longitudinally oriented channels;
• b) a support-sleeve having a circumferential flange, wherein said inner-surface is capable of receiving said support-sleeve;
• and
• c) a plurality of interchangeable-fins, each having a longitudinally oriented protrusion, each said protrusion being tightly engageable with each of said channels,
• said method comprising the steps of:
• a) selecting a set of said plurality of interchangeable-fins, said set chosen based on a core dimension of said paper-roll;
• b) inserting each said protrusion of an interchangeable-fin from said predetermined set into one of said channels;
• c) inserting said support-sleeve into said inner-surface of said central-hub;
• and
• d) inserting said interchangeable-fins that are engaged with said channels into said first end of said core of said paper-roll.