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If your wire jewelry has sharp wire ends that scratches your skin, then this is the tool you need.When I first started selling jewelry, I used this cup bur and pin vise set to file the ends of my wire. After I had money to buy a dremel(cordless drill), I took the cup bur out and use it on the dremel(it's the same idea, but faster).

You will receive a brand new set that includes

-a double ended pin vise with 2 interchangeable collets (4 sizes in total -- only one fits the cup bur): this tool can be used to hold small drill bits(such cup burs).It's also often used to twist wires.

-a 1.2 mm cup bur: used to file wire thinner than 18 gauge(1.0mm).This is the cup bur I prefer to use for ear wires.

-a 1.8 mm cup bur: used to file thicker wire up to 14 gauge gauge(1.4mm).

-a 2.7mm cup bur: used to file thicker wire up to 12 gauge(2 mm)

Pictures show how these tools are assembled.Pin vise is about 4" long.

While larger cup burs can always be used to file finer wire, you will have the best results when the size of the cup bur is closer to the size of the wire.The ideal sizes used are as follows..

- use 1.2mm cup bur for 20~28 gauge
- use 1.8mm cup bur for 14~22 gauge
- use 2.7mm cup bur for 12~16 gauge

Ultimate Wire Rounder set -- pin vise and 3 cup burs combo to round wire as thick as 12 gauge


  • Materials: pin vise, cup bur
  • Ships worldwide from United States
  • Feedback: 1199 reviews
  • Favorited by: 140 people