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Cup Bur

Cup Bur Jewelry Tool

The Cup Bur (also called a bur cup) is a tool used to remove the burs and imperfections on the end of a piece of cut jewelry wire.  The tool has a small cup with diamond dust inside which acts as an abrasive agent on the wire.  They are especially useful for smoothing the ends of ear wires. 

Directions on using the bur cup are here.  View bur cups here.


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