Zund R204-A Milling & Router Bits--Compatible/Equivalent 5211436
Zund R204-A (Part Number: 5211436). These premium alternatives preserve the exact geometry—4.0 mm cutting diameter, 14.0 mm cutting depth, 6.0 mm shank, and the integrated stop ring—ensuring complete compatibility with Zünd’s Automatic Router-bit Changer (ARC) pneumatic system.
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Zund Milling & Router Bits R204-A(5211436)

Zund R204-A (Part Number: 5211436) shares identical geometry with the standard R204 bit but features a pre-fitted pneumatic stop ring. This specific addition enables full compatibility with Zund’s Automatic Router-bit Changer (ARC) system, allowing for hands-off, automated tool swaps during complex, multi-stage production runs.
Technical Specifications
- Geometry: Single O-Flute, right-hand spiral, up-cut design.
- Cutting/Routing Diameter: 4.0 mm.
- Maximum Cutting Depth: 14.0 mm.
- Shank Diameter: 6.0 mm.
- Total Tool Length: 58 mm.
- Maximum Rotation Speed: 50,000 RPM.
Advantages of the Stop Ring & Up-Cut Design
The integrated stop ring guarantees precise depth calibration and zero-point settings every time the ARC system loads a new bit. Simultaneously, its polished single O-flute design clears debris at rapid feed rates, eliminating heat tracking and preserving optimal edge finishes on heat-sensitive materials.
Common Industrial Applications
This bit is a versatile "universal" option frequently deployed across sign-making and panel-processing industries. It handles tough, multi-layered, or dense materials including:
- Metals & Composites: Aluminum sheets, Dibond/ACM panels, and copper.
- Rigid & Soft Plastics: Acrylic (PMMA), Polycarbonate, Expanded PVC (Forex/Sintra), PET, and Polypropylene.
- Wood Products: Multi-ply plywood, hardwoods, and high-density MDF.
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.
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