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Zund R28 3910708 Double-Flute CNC Milling and Router Bit

Zund R28 3910708 is a double-flute router bit designed for compatible Zund CNC digital cutting systems. With a 1.2 mm cutting diameter and 6 mm cutting length, it is suitable for precision routing of acrylic, aluminum alloy and other compatible rigid sheet materials.

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Description
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Zund R28 3910708 Double-Flute CNC Milling and Router Bit

Specifications

Part Number: 3910708
Shank Diameter: 1/8 in (approx. 3.175 mm)
Routing Diameter (Cutting Diameter): 1.2 mm
Tool Length: 38 mm
Maximum Routing Depth: 6 mm
Flutes / Cutting Edges: 2 (double-edged / 2-flute)
Compatible Tool Systems: PN 150/450 W (Universal Routing Tool / RM)
Max Rotation Speed: Up to 80,000 rpm

Geometry: Up-cut spiral flute configuration. This design efficiently pulls chips up and away from the working material to prevent clogging and overheating.
Material Composition: Fine-grain solid tungsten carbide (TC) for maximum wear resistance, structural stiffness, and an extended production lifespan.

System Compatibility
This bit is designed to integrate natively into Zund flatbed digital cutters equipped with router modules (such as the RM-A, RM-S, or RM-L modules). It is widely used across standard flatbed platforms, including the Zund G3 Cutter series. Because it matches precise OEM physical tolerances, it is also frequently adapted by operators running alternative heavy-duty digital finishing tables from brands like Kongsberg, Colex, and Summa.

Material Applications
The R28 up-cut geometry is optimized for clean edge routing and high-feed-rate profiling through a variety of rigid, semi-rigid, and composite substrates:
Plastics & Polymers: Acrylic (PMMA), Polycarbonate, Expanded PVC (Forex), and Polypropylene.
Composites: Aluminum Composite Materials (ACM, Dibond).
Wood Composites: Medium-Density Fiberboard (MDF) and solid wood sheet goods.
Heavy Foams: Gatorfoam, structural polyurethane foam, and heavy-duty graphics boards.

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