CNC WOODWORKING
Compression Router Bit
Compression router bits are specifically engineered for machining double-sided laminated materials where preventing tear-out is critical. Manufactured from micro-grain solid carbide, these tools feature a combined up-cut and down-cut flute geometry. This specific design directs the cutting forces and chip flow toward the center of the workpiece, ensuring clean top and bottom edges in a single pass. They are a standard tooling requirement for CNC routing of melamine, veneered plywood, and laminated MDF.
Applications & Tool Construction
Versatile Applications:
Sundi’s compression router bits are specified for industrial woodworking applications involving composite and laminated sheet goods:
Target Materials: Double-sided melamine, veneered plywood, MDF, high-pressure laminates (HPL), and solid wood.
Machine Compatibility: CNC routers, nesting machines, and automated machining centers.


- Quality Assurance
- OEM/ODM Service
- Cost Saving
- Fast Delivery
Products
As a specialized manufacturer of CNC woodworking tools, Sundi provides a comprehensive range of compression router bits designed to eliminate tear-out on double-sided laminated panels. Our product line includes 2-flute and 3-flute solid carbide compression bits for high-speed CNC routing, TCT compression bits for cost-effective material processing, and flush trim compression bits equipped with guide bearings for handheld or router table applications.
2 Flutes Compression Router Bit
Ideal for standard CNC feed rates and balanced cutting forces.
Request a Quote3 Flutes Compression Router Bit
Engineered for maximum feed speeds and superior finish quality.
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Cost-effective brazed carbide solution for abrasive materials.
Request a QuoteFlush Trim Compression Router Bits
Features top/bottom bearings for flawless template routing.
Request a QuoteTechnical Features & Advantages
Combined Up-Cut and Down-Cut Geometry
The opposing shear angles compress the material fibers toward the center of the cut. This mechanical action actively prevents chipping and tear-out on both the top and bottom surfaces of laminated or veneered panels.
Micro-Grain Solid Tungsten Carbide Construction
Manufactured entirely from sub-micron industrial-grade carbide. This material provides high wear resistance and maintains edge sharpness over extended production runs, even when processing abrasive composite boards.

Standard and Mortise Configurations
Available in standard formats for full-depth profile routing, and "mortise" formats with a shorter up-cut section. The mortise design is specifically used for shallow grooving or dadoing where the top edge must remain clean.
Efficient Chip Extraction
The spiral flute design facilitates consistent chip removal and heat dissipation. This prevents material burning and allows for optimal feed rates on CNC machining centers.
Working Principle of Solid Carbide Compression Router Bits
- As the bit rotates, the up-cut flutes draw material upward and channel it toward the down-cut flutes.
- The down-cut flutes then compress this material toward the center of the bit, effectively minimizing tear-out and splintering on both the top and bottom surfaces of the cut.

Specifications
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 |
|---|---|---|---|---|
| WC-2-0321 | 3 | 21 | 50 | 3 |
| WC-2-D317 | 3.175 | 17 | 45 | 3.175 |
| WC-2-D425 | 4.76 | 25 | 63.5 | 4.76 |
| WC-2-0625(64) | 6 | 25 | 64 | 6 |
| WC-2-D631(76) | 6.35 | 31 | 76.2 | 6.35 |
| WC-2-D722 | 7.9 | 22 | 63.5 | 7.9 |
| WC-2-0825 (64) | 8 | 25 | 64 | 8 |
| WC-2-D925 | 9.525 | 25 | 76.2 | 12.7 |
| WC-2-1035 | 10 | 35 | 75 | 10 |
| WC-2-1232 (75) | 12 | 32 | 75 | 12 |
| WC-2-D1231 | 12.7 | 31.75 | 76.2 | 12.7 |
| WC-2-D1254 | 12.7 | 54 | 127 | 12.7 |
| WC-2-D1231(B) | 12.7 | 31 | 76.2 | 12.7 |
| WC-2-D1235 | 12.7 | 35 | 89 | 12.7 |
| WC-2-D1250 | 12.7 | 38 | 101.6 | 12.7 |
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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