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Zund R31 3910421 Spiral Milling Router Bits On Zund Digital Cutting Systems
The Zund R31 Spiral Milling Bit, also known as Router Bit 3910421, is a high-quality tool specifically designed for woodworking applications. Ideal for precision cuts and efficient performance, this versatile bit is now available for purchase at competitive prices. It is compatible with a range of e… Enquire now
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Zund R31 3910421 Spiral Milling Router Bits
Zund R31 3910421 Spiral Milling Router Bits
The Zund R31 Spiral Milling Bit (Part #3910421) is a specialized, industrial-grade solid tungsten carbide router bit designed exclusively for machining and milling hard brass on Zund digital cutting systems. 

Unlike general-purpose single-flute bits, the R31 features a unique configuration optimized to handle the structural density of non-ferrous alloys without binding, chipping, or overheating. 

Core Technical Specifications
  • Part Number: 3910421
  • Geometric Designation: Zund R31
  • Flute Count: Triple-flute (Z=3) configuration for balanced chip loads
  • Spiral Direction: Up-cut (right-hand spiral) to pull metal chips upward and out of the channel
  • Cutting Edge Diameter: 1.5 mm
  • Milling Depth (Cut Length): 5.0 mm
  • Primary Material Composition: Micrograin Tungsten Carbide 


Key Structural & Operational Benefits
  • High-Load Flute Geometry: The triple-flute profile provides exceptional rigidity, minimizing tool deflection when cutting rigid materials like brass.
  • Variant Availability: This milling bit is available as a standard cylinder or with an integrated stop ring ("A" variant), allowing it to interface with the Zund Automatic Router Changer (ARC) without manual height calibration.
  • Zund Spindle Support: It is fully optimized for high-speed operation within the Zund Universal Routing Tool (URT) and the Zund 3.6 kW RM-L Routing Module. 

OYEA Knives manufactures and supplies a full line of both STANDARD and CUSTOM leather cutting knives and blades. All of our standard leather cutting knives are manufactured to exceed the exact OEM standards.  
                                                 
Zund R31 3910421 Spiral Milling Router Bits

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OYEA Knives has established itself as a front-runner in delivering both standard and customized leather cutting knives and blades, catering to a variety of industrial applications as well as specific, tailored demands. Our standard leather cutting knives set the benchmark by not only adhering to but exceeding OEM (original equipment manufacturer) specifications. Every product is carefully crafted with an emphasis on enduring performance and dependability, ensuring they meet the rigorous expectations set by our customers.

Complementing our superior product range is an extensive global distribution network that spans multiple continents, providing efficient access to our offerings across Europe, the Americas, the Middle East, and Asia. By leveraging streamlined shipping logistics alongside dedicated customer service teams, we have successfully established a robust international presence. Our products are readily available in key markets such as Germany, France, the United Kingdom, Poland, the United States, Russia, Vietnam, Thailand, Indonesia, Singapore, the Netherlands, Switzerland, South Korea, Japan, Turkey, the Philippines, Hong Kong, Taiwan, Italy, Spain, Hungary, Australia, Malaysia, Canada, the Czech Republic, Mexico, India, and beyond. This expansive reach serves as a testament to our unwavering commitment to delivering high-quality cutting solutions on a global scale while fostering strong relationships with our international clientele.
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