3.175×20 Grade A 4 Flute Left Spiral Down Cut Router Bit

3.175x20 Grade A 4 Flute Left Spiral Down Cut Router Bit

Product Description

This Grade A four flute left spiral down cut router bit is designed for CNC jobs that require a clean upper surface and stable cutting action. The 3.175 mm shank fits compact engraving machines and precision router spindles, while the 20 mm cutting length is suitable for detailed profiling, slotting and edge trimming.

The left spiral down-cut geometry directs chips toward the workpiece, helping reduce lifting and top-edge fuzz on wood, MDF, acrylic and laminated boards. Four cutting edges distribute the cutting load and support a smooth finish when the machine uses the correct spindle speed, feed rate and clamping method.

Recommended Applications

  • Clean top-edge cutting on plywood, MDF and laminated board
  • CNC profiling and slot milling in acrylic and plastic
  • Precision engraving where a compact 3.175 mm shank is required
3.175x20 Grade A 4 Flute Left Spiral Down Cut Router Bit detail 1
3.175x20 Grade A 4 Flute Left Spiral Down Cut Router Bit detail 2

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