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Elevate your precision work with our Size 30 (8) Bearing 90° High-Speed Burs, expertly crafted from premium tungsten carbide for unmatched strength, durability, and performance. Engineered to withstand intense rotational speeds and heavy-duty use, these burs deliver consistent, precise results across a wide range of materials — including metals, plastics, wood, and ceramics.
Whether you’re a professional jeweler, metalworker, or DIY enthusiast, these burs provide the control and reliability needed for intricate cutting, shaping, and finishing tasks.
Key Features & Benefits
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Exceptional Durability: Manufactured from high-quality tungsten carbide to resist wear, heat, and deformation during extended high-speed use.
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Precision Cutting Performance: Sharp, finely engineered edges ensure clean, accurate, and detailed cuts every time.
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Efficient Material Removal: Designed for fast, smooth grinding and shaping, reducing work time without compromising precision.
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90° Bearing Design: Provides superior rotational stability and control, resulting in smooth operation and a flawless finish.
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Versatile Applications: Ideal for metal fabrication, jewelry making, woodworking, plastics processing, and other professional or hobbyist projects.
Perfect For
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Jewelers and metalworkers
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Dental and precision tool applications
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Wood carving and model making
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Fine detailing and engraving
- Size - #30 (8 mm)
- Bearing Angle - 90°
- Shank Diameter - 3/32" (2.35 mm)
- Cutting Length (In/Pul) - 0.314"
- Cut Type - Precision fine-cut for detailed work
- Recommended Speed Range - Up to 450,000 RPM (depending on tool type)
- Compatibility - Fits standard high-speed handpieces and rotary tools
- Applications - Cutting, grinding, shaping, polishing, deburring, and surface finishing on metals, plastics, wood, and ceramics
- Durability - Resistant to wear, chipping, and dulling for extended use
- Professional Use - Jewelry making, metalworking, woodworking, dental applications, and hobbyist projects
Safety Note: High-speed burs rotate at extremely high speeds. Always wear safety glasses, gloves, and protective gear while operating. Ensure the bur is securely mounted and follow all tool manufacturer guidelines to prevent injury.
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Features
Durable Tungsten Carbide Construction: Made from premium tungsten carbide to withstand high temperatures, rotational speeds, and heavy-duty use, ensuring long-lasting performance.
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Ultra-Sharp Cutting Edges: Precisely engineered edges allow for fast, smooth, and accurate cutting, grinding, and polishing of metals, plastics, wood, ceramics, and composites.
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90° Bearing Design: Ensures balanced rotation and minimal vibration for precise, controlled operation and superior finish quality.
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Versatile Applications: Ideal for shaping, deburring, engraving, surface smoothing, rust or corrosion removal, and other industrial or DIY projects.
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High-Speed Efficiency: Optimized for high-speed rotary tools to maximize productivity without sacrificing precision.
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Smooth Material Removal: Cuts and grinds evenly, reducing chatter and achieving a consistent surface finish.
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Professional and Hobbyist Friendly: Suitable for jewelry making, metalworking, woodworking, dental applications, and detailed craft projects.
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Enhanced Longevity: Resistant to wear, chipping, and dulling, ensuring reliable performance and minimizing tool replacements.
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Compact & Precise: Size 30 (8) design allows access to tight spaces and detailed areas for intricate work.
High Speed Bur Size Convertion Chart |
| SIZE |
MM |
IN/PUL. |
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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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