When selecting tungsten carbide rotary burrs, most buyers focus on carbide grade, hardness, or shank size—but often overlook one of the most important performance factors: tooth geometry.

The tooth design (also called flute or cutting pattern) directly determines cutting speed, chip removal efficiency, surface finish, heat generation, and tool lifespan.

If you are a tool distributor, industrial buyer, or factory purchasing manager, understanding tooth geometry will help you choose the right carbide burr for each application—and avoid unnecessary tooling costs.

What Is Tooth Geometry in Carbide Rotary Burrs?
Tooth geometry refers to the shape, size, and layout of cutting edges on the carbide burr head. These cutting teeth remove material by high-speed rotary grinding, and the tooth structure controls:
- How aggressively material is removed
- How smoothly the burr cuts
- How chips are discharged
- How long the burr lasts

A well-designed tooth pattern improves cutting efficiency by 30–50% and reduces tool wear significantly.

Common Tooth Types of Carbide Burrs

Single Cut vs Double Cut vs Aluminum Cut – Performance Comparison

*If you’re selling to metal workshops or distributors, always include all 3 tooth types in your catalog—they cover 90% of market needs.

How Tooth Geometry Affects Cutting Performance
1. Chip Removal Efficiency: Large flute designs remove chips faster (best for aluminum), while cross-cut teeth reduce chip size (best for stainless steel).
2. Cutting Speed: Aggressive flute geometry increases removal rate but also requires higher RPM and stable tools.
3. Heat Generation: Wrong tooth type = excessive heat = tool wear + burns on workpiece.
4. Vibration & Stability: Double cut burrs reduce vibration and improve control—ideal for manual die grinder operations.
5. Tool Life: Optimized tooth geometry reduces friction and loading—extends burr life by 25–40%.

Choosing the Right Tooth Geometry for Different Materials

Custom Tooth Geometry for OEM Orders
Variable flute geometry
Chipbreaker patterns
High-helix tooth design
Micro-grain carbide + CNC sharpened teeth
Left-hand spiral designs for special applications

*Ideal for automotive porting, aerospace grinding, mold tool finishing, shipyard repair, and precision deburring lines.

How to Identify High-Quality Tooth Geometry

Before choosing a carbide burr supplier, check:
- Cutting edge sharpness
- Tooth symmetry and balance
- CNC ground precision
- Silver brazing strength
- Surface finish

FAQ – Buyers Also Ask
Q1: Which carbide burr tooth type lasts longest?
Double cut burrs generally provide the best balance between speed and tool life.

Q2: Can I request special tooth geometry?
Yes—OEM customization of tooth design is available for volume orders.

Q3: What tooth type is best for stainless steel?
Double cut burrs—reduce hardening, smoother control.

Conclusion
Tooth geometry directly controls cutting speed, chip removal, surface finish, heat, and tool life. Choosing the right tooth design means higher performance and lower tooling cost.

We manufacture tungsten carbide rotary burrs for global tool distributors and industrial users.  We have the following main advantages:
- Ultra-fine grain carbide WC
- CNC 5-axis precision grinding
- High-strength silver brazing
- Standard & customized tooth geometry

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CHENGDU BABOS CUTTING TECH CO.,LTD

E-Mail

sales@industrial-cuttingtools.com

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