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Zund R51 3910719 Single-Flute CNC Router Bit

The Zund R51 3910719 is a single-flute router bit designed for compatible Zund CNC routing systems. It features a 4 mm cutting diameter, 4 mm shank and 22 mm maximum routing depth. The polished cutting design is suitable for routing selected rigid and semi-rigid sheet materials when used with appropriate cutting parameters.

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Description
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Zund R51 3910719 Single-Flute CNC Router Bit

Key Specifications

Part Number: 3910719
Bit Type: Single-edged, polished, up-cut spiral router bit
Shank Diameter: 4 mm
Routing / Cutting Diameter: 4 mm
Total Tool Length (L): 50 mm (Ø4/50 mm)
Maximum Routing Depth / Reach: 22 mm
Flutes: 1 flute
Max Rotation Speed: 50,000 RPM

Recommended Applications
The R51's 22mm reach is optimized for thick, semi-rigid sign and display substrates:
Wood Composites: Thick MDF, multi-ply plywood, and furniture-grade hardwoods.
Signage Foams: Thick expanded PVC (Forex / Sintra) and rigid polyurethane/polyisocyanurate insulation foams.
Layered Sheets: Heavy-gauge Aluminium Composite Materials (ACM / Dibond).

System Integration & Sourcing
This tool natively integrates with Zund's premium routing modules, including the Universal Routing Tool (URT) and Router Modules RM-A (450W) or RM-L (1kW/3.6kW), widely deployed across Zund G3 and D3 cutting systems.

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