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High Speed Steel (HSS) Flame Burs, Size 4 (1.5 mm), are premium-quality rotary cutting tools designed for delicate and intricate applications. Crafted from high-grade HSS, these burs provide excellent hardness, wear resistance, and heat tolerance, ensuring consistent performance even during prolonged use.
The flame-shaped design allows for precise cutting and smooth material removal, making it perfect for fine detailing, deburring, engraving, and finishing operations. Whether you are working on metal, wood, stone, resin, or jewelry pieces, these burs deliver clean, professional results with minimal effort.
Key Features & Benefits
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High-Quality Materials: Made from durable High Speed Steel (HSS) for superior performance and long-lasting sharpness.
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Flame-Shaped Design: Tapered profile ensures precision in tight or curved areas and smooth finishing.
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Versatile Use: Suitable for metalworking, woodworking, jewelry making, stone carving, and model engineering.
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Fine Material Removal: Ideal for intricate shaping, engraving, deburring, and finishing delicate surfaces.
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Heat & Wear Resistant: Maintains sharpness and performance even at high speeds and extended use.
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Smooth Operation: Low vibration and chatter-free cutting for comfortable, controlled handling.
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Multi-Material Compatibility: Works effectively on ferrous and non-ferrous metals, hardwoods, plastics, resins, and ceramics.
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Professional Finish: Leaves clean, burr-free surfaces suitable for high-precision projects.
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Universal Compatibility: Fits most rotary tools, die grinders, and flexible shaft machines with standard 3/32" (2.35 mm) shanks.
- Material - Tungsten Carbide Steel / High Speed Steel (HSS)
- Bur Shape - Flame
- Bur Cut - Flame Cut (Precision Spiral Teeth)
- Head Diameter (Size) - 4 (1.5 mm)
- Head Length - Approx. 6–8 mm (varies by manufacturer)
- Overall Length - Approx. 35–40 mm
- Shank Diameter - 3/32" (2.35 mm)
- Shank Shaft Diameter - 3/32" – 2.35 mm (fits standard rotary tools)
- In/Pul. (Inch per Pulley) - 0.059
- Recommended Speed Range - 15,000 – 35,000 RPM (adjust according to material hardness)
- Cutting Direction - Right-hand spiral (standard)
- Tooth Type - Fine cross-cut or single cut (smooth finish)
- Hardness Rating - ~HRC 63–67 (approximate)
- Surface Finish - Smooth, precise, minimal burr formation
- Tool Compatibility - Rotary tools, die grinders, micro motors, flexible shaft machines
- Application Materials - Ferrous and non-ferrous metals, hardwoods, softwoods, plastics, resins, ceramics, stone
- Performance Features - High-speed cutting, low vibration, heat-resistant, durable
- Corrosion Resistance - Excellent – resists rust, oxidation, and chemical wear
- Tool Life - Long-lasting, retains sharpness during continuous or repetitive use
Safety Note - High-speed operation: HSS burs rotate at very high speeds; ensure secure fitting before use.
- Personal protection: Always wear safety glasses, gloves, and protective gear.
- Operating caution: Avoid excessive pressure; let the tool cut naturally to prevent damage or injury.
- Work area: Keep clear of flammable materials.
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Features
High-Quality Materials: Made from premium High Speed Steel (HSS) for excellent hardness, wear resistance, and long-lasting performance.
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Durable Construction: Engineered to withstand heavy-duty and high-speed applications without dulling or breaking.
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Versatile Use: Ideal for metalworking, woodworking, jewelry making, stone carving, engraving, and model work.
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Precise Cutting: Provides accurate shaping, fine detailing, and intricate work in tight spaces.
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Efficient Performance: Delivers fast, smooth material removal for improved workflow and efficiency.
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Flame-Shaped Design: Tapered profile allows easy access to curves, recesses, and small areas for controlled cutting.
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Heat & Wear Resistant: Maintains sharpness and cutting efficiency even under prolonged use at high speeds.
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Smooth & Stable Operation: Low vibration and chatter-free design ensure comfortable handling and professional finish.
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Multi-Material Capability: Works effectively on ferrous and non-ferrous metals, hardwoods, softwoods, plastics, resins, and ceramics.
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Professional Finish: Leaves clean, burr-free surfaces ideal for finishing and polishing delicate projects.
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Universal Compatibility: Fits most rotary tools, die grinders, micro motors, and flexible shaft machines with standard 3/32" (2.35 mm) shanks.
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Time-Saving Efficiency: Minimizes clogging and cutting resistance for faster, more precise results.
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Safe & Reliable: Built for stability at high RPMs when used with proper safety precautions.
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Ideal for Detail Work: Perfect for intricate engraving, deburring, and finishing small or delicate components.
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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