CNC WOODWORKING
Carbide Spiral CNC 2D/3D Carving Tapered Router Bits
Tapered spiral router bits are specialized cutting tools engineered for high-precision 2D and 3D CNC carving applications. Manufactured from micro-grain solid carbide, these bits feature a conical profile that combines a fine cutting tip for intricate detailing with a reinforced, thicker shank for maximum structural rigidity. This specific geometry allows for deep 3D profiling and complex relief carving while significantly minimizing tool deflection, chatter, and the risk of breakage during aggressive tool paths.
Applications & Tool Construction
Versatile Applications：
Sundi’s tapered spiral carving bits are specified for industrial CNC operations requiring intricate detailing and deep dimensional cuts:
Target Operations: 3D relief carving, deep profile routing, precision sign making, mold making, and complex 2D lettering.
Target Materials: Solid hardwoods, softwoods, MDF, dense modeling foams, industrial plastics, and certain non-ferrous metals (such as aluminum or brass).
Equipment Integration: Highly compatible with 3-axis, 4-axis, and 5-axis CNC machining centers and CNC routers.
Tool Selection Note: For large-area 3D roughing or machining broad, continuous curves, please see our [Solid Carbide Ball Nose Bits]. Tapered bits are specifically optimized for fine detailing and deep cavities.
- Quality Assurance
- OEM/ODM Service
- Cost Saving
- Fast Delivery
Technical Features & Advantages
Reinforced Conical Core Geometry
The tapered design provides massive cross-sectional strength near the shank. This structural integrity prevents tool deflection during deep cavity 3D carving, ensuring strict dimensional accuracy across the entire workpiece.
Precision Ball Nose and V-Tip Options
Available in ball nose configurations for smooth, continuous 3D contouring, and flat/V-tip configurations for sharp 2D lettering and fine profiling. Both designs allow for highly intricate detailing in a single setup.
Aggressive Up-Cut Spiral Flutes
The spiral geometry facilitates rapid vertical chip evacuation. This prevents chip packing within deep carved cavities, reduces heat generation, and prevents burning marks on delicate materials.
Sub-Micron Solid Tungsten Carbide
Machined entirely from industrial-grade solid carbide. This ensures exceptional wear resistance and edge retention when processing abrasive hardwoods, MDF, and dense modeling foams over extended operating cycles.
Working Principle of Tapered Spiral Router Bits
Tapered spiral router bits are engineered specifically for high-detail CNC carving, featuring a conical geometry that tapers down to a very fine ball or V-tip. Unlike standard cylindrical bits, this structural design provides the necessary reach for deep 3D profiles while maintaining massive cross-sectional strength at the shank.
- As the tool engages the material, the fine tip performs intricate detail work, while the thick, tapered core effectively absorbs lateral cutting forces. This structural integrity prevents tool deflection (bending) and minimizes chatter during deep cavity machining.
- The aggressive up-cut spiral flutes simultaneously draw wood chips upward and out of the deep cut. This vertical chip evacuation prevents packing, reduces heat buildup, and protects both the delicate cutting tip and the workpiece from burning.
Specification:
Below are some commonly used dimensions for reference. If you require other specifications or custom shapes, please feel free to contact us.
| Item Code | Outside Diameter | Flute Length | Overall Length | Shank Diameter | R |
|---|---|---|---|---|---|
| WTB-2-D315-R1 | 3.175 | 15 | 38 | 3.175 | 0.25 |
| WTB-2-0415-R2 | 4 | 15 | 50 | 4 | 0.5 |
| WTB-2-0421-R3 | 4 | 20.5 | 50 | 4 | 0.75 |
| WTB-2-0621-R4 | 6 | 20.5 | 50 | 6 | 1.0 |
| WTB-2-0621-R5(60) | 6 | 20.1 | 60 | 6 | 1.0 |
| WTB-2-0631-R6 | 6 | 31 | 75 | 6 | 1.5 |
| WTB-2-0847-R8 | 8 | 47 | 85 | 8 | 2.0 |
| WTB-2-0860-R8 | 8 | 60 | 100 | 8 | 2.0 |
| WTB-2-0860-R8(120) | 8 | 60 | 120 | 8 | 2.0 |
| WTB-2-1060-R8 | 10 | 60 | 100 | 10 | 2.0 |
| WTB-2-1070-R8(150) | 10 | 70 | 150 | 10 | 2.0 |
| WTB-2-1270-R8(120) | 12 | 70 | 120 | 12 | 2.0 |
Why Choose Us
Professional & Team
we have multi top class production lines which help us to offer better performance tools and extend the range of our products. We follow standard procedures and have an excellent team of designers.
Quality
Every year, we spend a lot of money upgrading and maintaining our equipment.
OEM
We have many years of leading OEM and ODM manufacturing experience in this field.
I Stock & Delivery
We have an ample supply of goods in stock. Receiving goods as fast as 3 days around the world.
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