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High Speed Burs, Size 7 (2.1) Bearing 90°
Tungsten Carbide High‑Speed Bur Size 7 (2.1 mm) with 90° bearing – precision rotary tool for cutting, grinding and shaping metal, wood, plastics and ceramics.
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Spanish Name: FRESAS DE ALTA VELOCIDAD, TAMAÑO 7 Paragua 90°


Product Code: B262-7
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Description Technical Specs
 

Precision‑engineered for intricate work, our Size 7 (2.1) Bearing 90° high‑speed bur is an indispensable tool for professionals and DIY enthusiasts alike. Crafted from high‑grade tungsten carbide, this bur excels in demanding applications—delivering reliable performance when cutting, grinding, shaping and refining materials such as metals, plastics, wood and ceramics.

Built to endure high rotational speeds and heavy usage, the tool offers a blend of durability, accuracy and versatility you can rely on. Whether you’re performing fine detailing in jewelry making, shaping metal, prepping wood or smoothing ceramic surfaces, this bur provides the control and longevity required for quality results.

Key Benefits:

  • Superior Durability: Constructed with premium tungsten carbide to sustain high‑speed rotation and resist wear over time.

  • Precision Cutting: The sharp, finely‑ground flutes enable clean, detailed cuts and accurate shaping with minimal effort.

  • Efficient Grinding & Shaping: Designed for rapid yet controlled material removal, enabling faster surface preparation and finishing.

  • Versatile Use‑Case: Perfect for various professional and DIY projects across a wide range of materials—metal, plastics, wood, ceramics and beyond.
Features
  • Durable Tungsten Carbide Construction: Made from high-grade tungsten carbide for exceptional strength, heat resistance, and extended tool life.
  • Ultra-Sharp Cutting Edges: Precisely engineered flutes ensure fast, clean cutting, grinding and polishing across a variety of materials including metals, plastics, wood and ceramics.
  • 90° Bearing Design for Smooth Rotation: The 90° bearing design enables balanced, stable rotation with minimal vibration, allowing for more control and a finer finish.
  • Versatile Use Across Materials & Applications: Suitable for professionals and DIY users alike—perfect for metal shaping, wood carving, plastic fabrication, ceramic finishing, rust/corrosion removal, polishing, and material deburring.
  • High-Speed Efficiency & Productivity: Designed for use with rotary tools at elevated speeds, this bur enables rapid material removal without sacrificing precision.
  • Reduced Vibration & Enhanced Control: With high concentricity and precision manufacturing, this tool helps reduce chatter and operator fatigue, resulting in smooth operation and better surface finishes.
  • Extended Tool Life for Better Value: Thanks to the hardness and durability of tungsten carbide, these burs maintain sharpness and wear-resistance far better than traditional high-speed steel tools.
  • Access for Precision Work (Size 6 / 1.9 mm): The compact 1.9 mm diameter head offers excellent control for detailed tasks while still providing durability for more robust work.
  • Ready for Standard Shank Systems: Designed to fit most 3/32″ (≈ 2.35 mm) shank handpieces and rotary tools—convenient and compatible for professional setups or hobby use.
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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