Cup Bur Sizes for Wire Gauges
Question:
How do I determine what size of cup bur to buy for the different size wire gauges? For instance, I use 21-gauge wire for making ear wires. What size cup bur would I use? Is there a chart out there somewhere? Thank you!
-Bobbie in Miami, Florida
How do I determine what size of cup bur to buy for the different size wire gauges? For instance, I use 21-gauge wire for making ear wires. What size cup bur would I use? Is there a chart out there somewhere? Thank you!
-Bobbie in Miami, Florida
Instructions
Answer:
Hi Bobbie, the size of the cup bur you choose should be just a hair larger than the wire you plan to use it on.
For example, if you use 21-gauge (which is 0.723mm in diameter) to make ear wires, then you would want to use a cup bur of 0.8mm, or even the next size larger.
To determine what size the wire is, check out our Conversion Table - American Wire Gauge to Inches and MM!.
Hi Bobbie, the size of the cup bur you choose should be just a hair larger than the wire you plan to use it on.
For example, if you use 21-gauge (which is 0.723mm in diameter) to make ear wires, then you would want to use a cup bur of 0.8mm, or even the next size larger.
To determine what size the wire is, check out our Conversion Table - American Wire Gauge to Inches and MM!.
Choosing your cup bur in this manner, you will find that one will fit several wire gauges.
Our sister site, Jewelrytools.com!, has a great selection of cup burs, including some sets! Remember that these are very versatile as they can be used in either a hand holder or in your Dremel or automatic wire twister.
For those of you who may not know what a cup bur is or how to use it, Denise Peck has a great video on our wire rounder (that includes a cup bur) and how to use it.
Answer contributed by Dale "Cougar" Armstrong
Our sister site, Jewelrytools.com!, has a great selection of cup burs, including some sets! Remember that these are very versatile as they can be used in either a hand holder or in your Dremel or automatic wire twister.
For those of you who may not know what a cup bur is or how to use it, Denise Peck has a great video on our wire rounder (that includes a cup bur) and how to use it.
Answer contributed by Dale "Cougar" Armstrong
Materials
Wire
Tools
Master Swiss Bur Set, 24 Piece Set
BUR-400.00
- BUR-400.00
- Lesson Quantity: 1.00 pieces
- Purchase Quantity: 1.00 each
- Price: $49.95
- Gold Club Price: $37.46
Swiss Bur Set Assortment, 24 Piece Set
BUR-416.00
- BUR-416.00
- Lesson Quantity: 1.00 pieces
- Purchase Quantity: 1.00 each
- Price: $41.95
- Gold Club Price: $31.46
Wire Rounder Set, 3 pieces
G14-20
- G14-20
- Lesson Quantity: 1.00 pieces
- Purchase Quantity: 1.00 each
- Price: $13.95
- Gold Club Price: $10.46
Wire Rounder with Wooden Handle - Pack of 1
G14-19
- G14-19
- Lesson Quantity: 1.00 pieces
- Purchase Quantity: 1.00 each
- Price: $7.95
- Gold Club Price: $5.96
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- Category: Tools
- Technique(s): Tools
Dale Armstrong
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