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Straight Flute Router Bits for Woodworking
Straight flute router bits are fundamental cutting tools designed for general-purpose CNC and manual routing applications. The defining geometric characteristic of these tools is the cutting edge alignment, which runs strictly parallel to the axis of rotation. This neutral flute architecture dictates that the tool exerts zero upward (lifting) or downward (compressing) axial force on the workpiece during operation. This absence of vertical stress ensures maximum workpiece stability on CNC vacuum tables and prevents material shifting during the cut.
Versatile Applications：
While spiral or compression bits are necessary for fragile double-sided laminates, straight flute bits remain the primary industrial standard for general material removal where top or bottom edge tear-out is not the primary limiting factor.
Optimal Materials: Solid hardwoods, softwoods, standard MDF (Medium-Density Fiberboard), particleboard, plywood, and specific industrial plastics.
Standard Operations: Dadoing, grooving, slotting, rebating, and standard edge trimming.
Equipment Integration: Fully compatible with CNC machining centers, automated point-to-point (PTP) routers, and manual router tables.
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Description
Technical Features & Advantages
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Perpendicular Cutting Action:
The straight edge engages the material with a direct, perpendicular impact rather than a shearing motion. This specific cutting dynamic produces highly accurate, square cuts, making it the standard choice for routing clean dados and grooves.
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Maximized Radial Chip Clearance
The straight flute configuration provides substantial open space for radial chip evacuation. This design efficiently clears waste material from the cutting zone in applications where aggressive vertical chip extraction (as seen in spiral bits) is not required.
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Material Construction Options
Sundi manufactures straight flute bits in both Solid Tungsten Carbide for maximum overall rigidity and High-Frequency Brazed Carbide-Tipped (TCT) formats. The TCT configuration offers a highly cost-effective solution for processing thick, abrasive panel materials.
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Simplified Maintenance Cycle
Due to the linear geometry of the cutting edge, straight flute router bits are significantly easier and more economical to professionally resharpen compared to complex spiral profiling tools, thereby extending the tool's effective lifecycle.
Working Principle of Straight Flute 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 |
|---|---|---|---|---|
| WS-2-D312 | 3.175 | 12 | 38 | 3.175 |
| WS-2-0422 | 4 | 22 | 45 | 4 |
| WS-2-0625 | 6 | 25 | 50 | 6 |
| WS-2-0852 | 8 | 52 | 80 | 8 |
| WS-2-1030 | 10 | 30 | 60 | 10 |
| WS-2-1080 | 10 | 80 | 120 | 10 |
| WS-2-10100 | 10 | 100 | 150 | 10 |
Why Choosing us
Professional
we have multi top class production lines which help us to offer better performance tools and extend the range of our products.
Quality
Every year, we spend a lot of money upgrading and maintaining our equipment.
I stock
We have an ample supply of goods in stock.
Team
We follow standard procedures and have an excellent team of designers.
OEM
We have many years of leading OEM and ODM manufacturing experience in this field.
Delivery
Receiving goods as fast as 3 days around the world.
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FAQ
Most frequent questions and answers
A: The primary factor is workpiece stability and the required chip evacuation rate. While spiral bits provide continuous shearing and aggressive vertical chip extraction, straight flute bits utilize a neutral cutting geometry. They do not exert upward (lifting) or downward (compressing) axial forces on the material. This makes straight bits highly effective for routing dados, grooves, and standard profiles where maintaining the workpiece flat against the CNC vacuum bed is critical, and where top-edge tear-out is not the primary limiting factor.
A: For standard MDF, particleboard, and solid wood, straight flute bits perform with high efficiency. However, for brittle, double-sided laminated panels like melamine or delicate veneers, they are generally not the recommended tooling solution. Because the straight cutting edge impacts the material perpendicular to the surface, it generates a chopping action that increases the risk of edge chipping on laminates. For these specific layered materials, Sundi engineers specify the use of our solid carbide compression router bits to ensure a defect-free finish.
Wuxi Sundi Precision Tools Co.,LTD
- +86 18168312921
- +86 18168312921
- +86 18951588639
- info@sundicuttingtools.com
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