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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.
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.
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Description
Technical Features & Advantages
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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.
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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.
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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.
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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
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 |
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OEM
We have many years of leading OEM and ODM manufacturing experience in this field.
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Receiving goods as fast as 3 days around the world.
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FAQ
Most frequent questions and answers
A: The tip geometry dictates the specific application. The ball nose configuration is specified for smooth 3D contouring, deep relief carving, and complex organic shapes, as the rounded tip minimizes harsh tool marks between passes. Conversely, the V-tip or flat bottom tapered bit is engineered for sharp 2D lettering, precision V-grooving, and fine detailing where crisp, precise bottom corners are strictly required.
A: For high-resolution 3D finishing in solid wood, MDF, or modeling foam, engineers typically recommend setting the stepover between 8% and 12% of the bit’s actual tip diameter. A smaller stepover percentage yields a superior surface finish and minimizes the need for secondary manual sanding, although it proportionally increases the overall CNC machining time. Feed rates should be adjusted according to this stepover and the material density.
A: Standard micro-bits with a uniform, small cutting diameter lack the cross-sectional mass required to withstand lateral cutting forces in deep cavities. This makes them highly susceptible to severe tool deflection (bending) and premature breakage. A tapered spiral bit solves this by providing the fine cutting tip necessary for intricate details, but it is supported by a continuously thickening conical core. This geometry delivers maximum industrial rigidity, allowing for significantly faster feed rates and deeper single passes without compromising tool integrity.
Wuxi Sundi Precision Tools Co.,LTD
- +86 18168312921
- +86 18168312921
- +86 18951588639
- info@sundicuttingtools.com
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