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The High Speed Steel Ball Burs, Round Set Of 25 is a premium-grade bur collection engineered for jewelers who demand accuracy, durability, and fine detailing in every stage of metalwork. Manufactured from high-performance High Speed Steel (HSS), these round burs deliver exceptional cutting strength and long-lasting edge retention, making them an essential addition to any professional bench setup.
Each bur in this 25-piece set is precision-ground for clean, controlled cutting, ensuring superior performance when shaping, engraving, drilling, or preparing stone seats. The balanced design minimizes vibration during high-RPM operation, allowing for smooth rotation, reduced heat buildup, and improved tool control. Whether working with gold, silver, platinum, brass, or other non-ferrous metals, these burs maintain their sharpness and dimensional accuracy even during extended use.
The complete size range included in this set allows artisans to execute detailed tasks with consistency and efficiency. From micro-fine carving to larger metal removal, the assortment provides full flexibility for stone setters, bench jewelers, and metalsmiths engaged in precision work. Their standard 3/32 inch shank size ensures compatibility with all major flex-shaft machines, micromotors, and rotary handpieces used across the jewelry industry.
Professionally designed, accurately machined, and built for longevity, the High Speed Steel Ball Burs set delivers consistent cutting performance that supports high-level craftsmanship. For jewelers seeking reliability and precision in every cut, this round bur set is a dependable, long-term investment in productivity and quality.
Key Benefits
- Precision Machining: Produces accurate, clean cuts ideal for fine jewelry work
- Extended Tool Life: High Speed Steel construction ensures superior durability
- Full Size Assortment: Complete 25-piece set supports a wide range of applications
- Consistent Performance: Reduced heat and vibration for smooth high-speed operation
- Professional Use: Designed for stone setting, texturing, shaping, and engraving
Material: High Speed Steel (HSS)
Bur Style: Round / Ball
Set Count: 25 Burs
Shank Diameter: 3/32 inch
Application Range: Stone seat cutting, engraving, cavity shaping, micro-carving
Compatibility: Flex shafts, micromotors, rotary handpieces
Cut Quality: Precision-ground for consistent performance
Additional Features
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Maintains structural integrity under continuous high-speed rotation
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Reduced wear rate compared to carbon steel burs
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Suitable for detailed jewelry fabrication, repair, and finishing
Safety Note
Wear approved eye protection when operating rotary tools. Secure the bur firmly in the collet before use. Use appropriate speed settings to prevent overheating and to maintain optimal cutting performance.
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Features
Premium High Speed Steel for long-lasting sharpness
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Round ball bur design for uniform cutting and smooth metal removal
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25 expertly machined sizes for complete jewelry application needs
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Precision-ground flutes for clean, accurate detailing
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Ideal for stone setting, texturing, deburring, and precision shaping
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Stable performance under high-RPM operation
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Compatible with most rotary tools with 3/32 inch collet
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Engineered to withstand continuous use on precious and semi-precious metals
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Organized storage for quick identification and access
High Speed Bur Size Convertion Chart |
| SIZE |
MM |
IN/PUL. |
|
SIZE |
MM |
IN/PUL. |
| 1 |
1.05 |
0.035 |
|
18 |
4.5 |
0.177 |
| 2 |
1.2 |
0.043 |
|
19 |
4.7 |
0.185 |
| 3 |
1.35 |
0.051 |
|
20 |
5 |
0.197 |
| 4 |
1.5 |
0.059 |
|
22 |
5.2 |
0.204 |
| 5 |
1.7 |
0.067 |
|
23 |
5.4 |
0.212 |
| 6 |
1.9 |
0.075 |
|
24 |
5.6 |
0.22 |
| 7 |
2.1 |
0.083 |
|
25 |
5.9 |
0.232 |
| 8 |
2.3 |
0.09 |
|
26 |
6.3 |
0.248 |
| 9 |
2.5 |
0.098 |
|
27 |
6.7 |
0.263 |
| 10 |
2.7 |
0.106 |
|
28 |
7.2 |
0.283 |
| 11 |
2.9 |
0.114 |
|
29 |
7.6 |
0.299 |
| 12 |
3.1 |
0.122 |
|
30 |
8 |
0.314 |
| 13 |
3.3 |
0.13 |
|
31 |
8.9 |
0.35 |
| 14 |
3.5 |
0.138 |
|
32 |
9.6 |
0.377 |
| 15 |
3.8 |
0.149 |
|
33 |
10.4 |
0.409 |
| 16 |
4 |
0.157 |
|
34 |
11 |
0.437 |
| 17 |
4.3 |
0.169 |
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