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Zund R50 3910718 Single-Flute CNC Router Bit

The Zund R50 3910718 is a single-flute router bit designed for compatible Zund CNC routing systems. It features a 4 mm cutting diameter, 4 mm shank and 14 mm maximum routing depth. This replacement routing tool is intended for use with compatible PN 150/450 W equipment. Confirm tool compatibility and cutting parameters before ordering.

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Description
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Zund R50 3910718 Single-Flute CNC Router Bit

Key Specifications

Part Number: 3910718
Shank Diameter: 4 mm
Routing / Cutting Diameter: 4 mm
Total Tool Length: 50 mm
Maximum Routing Depth: 14 mm
Flutes: 1 (Single-flute spiral design)

Applications & Materials

Design Feature: Polished single-flute spiral geometry engineered to reduce heat friction when cutting dense materials.

MAX. ROTATIONS SPEED (1/MIN)
50000

Recommended Materials
Metals: Solid Aluminum sheets and pre-painted aluminum panels (e.g., Signicolor)
Composites: Aluminum Composite Materials (ACM / Dibond)
Rigid Plastics: Acrylic (PMMA) and Polycarbonate (PC)

Performance Characteristics
The R50 features a polished single-flute design specifically engineered to counteract heat friction when cutting dense materials. Its right-hand spiral configuration generates a strong upward lifting force, which ejects metal spirals and hot plastic chips out of the channel instantly. This aggressive chip clearing prevents chip welding—a common issue where aluminum or acrylic melts and fuses back onto the cut path.
Because of its larger 4 mm profile, the tool absorbs heavy lateral forces easily, minimizing deflection and chatter during continuous, high-volume production runs.

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