3.175mm(1/8") 2 Flute Straight Shank Carbide End Mill CNC Router Bit Engraving Bits

Material: Carbide
Packaging: Plastic box
MOQ: 10pcs/box
Stock: In Stock
Payment Terms: T/T, Western Union
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PRODUCT DETAILS

If you’re running a CNC machine for engraving, cutting, or slotting tasks on wood, plastic, or soft metals, having a reliable bit matters. Our 3.175mm (1/8") 2 Flute Straight Shank Carbide End Mill is designed for clean finishes, accurate passes, and stable tool performance, even at high spindle speeds.

This is a go-to choice for professionals looking for consistency in fine-detail work—whether you're making signage, molds, electronics enclosures, or acrylic parts.


Product Highlights

  • Solid Carbide Construction
    Manufactured from high-hardness micro-grain carbide for enhanced wear resistance, longer tool life, and improved rigidity—perfect for high-speed CNC machines.

  • 2-Flute Design
    Dual flutes allow better chip removal while maintaining edge strength, making it suitable for a range of soft to semi-hard materials.

  • Straight Shank 3.175mm (1/8")
    Universally compatible with most desktop CNC routers, engraving machines, and Dremel-type rotary tools used in prototyping and production.

  • Sharp Edge Geometry
    Delivers smooth cuts, reduces edge burring, and improves surface quality—especially in plastic, MDF, plywood, and soft metals like aluminum.

  • Mirror Finish Cutting Edge
    Polished cutting surfaces reduce heat generation and friction during machining, especially useful for acrylic and soft polymers.


Recommended Applications

Perfect for:

  • PCB and electronics enclosure machining

  • Acrylic lettering and signage production

  • Wood pattern engraving

  • Plastics and PVC slotting or pocketing

  • Aluminum profile detailing (light passes)


Technical Specifications

  • Cutting Diameter: 3.175mm (1/8")

  • Shank Diameter: 3.175mm (1/8")

  • Cutting Length: 8mm, 12mm, or customizable

  • Flute Type: 2-flute spiral (flat bottom or ball nose available)

  • Overall Length: 38mm or as specified

  • Material: Solid Tungsten Carbide

  • Coating: Uncoated / Nano / TiAlN available on request

  • Packaging: Individual plastic case or bulk pack for OEM


Why Choose Us?

  • Factory-direct pricing with ISO-certified manufacturing

  • Strict QC on every batch—consistency you can trust

  • Low MOQ and fast delivery for global B2B buyers

  • OEM labeling, laser engraving, and bulk packaging available

  • One-on-one technical support and fast inquiry response


Standard Size

Cutting DiameterFlute LengthOverall LengthShank Diameter
1.0mm3mm38mm3.175mm
1.5mm6mm38mm3.175mm
1.5mm12mm38mm3.175mm
2.0mm8mm38mm3.175mm
2.0mm12mm38mm3.175mm
2.0mm17mm38mm3.175mm
2.0mm22mm38mm3.175mm
3.175mm12mm38mm3.175mm
3.175mm17mm38mm3.175mm
3.175mm22mm38mm3.175mm
3.175mm22mm45mm3.175mm
3.175mm25mm50mm3.175mm
3.175mm28mm50mm3.175mm
3.175mm32mm55mm3.175mm

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Wide Clearance: Fast material removal
Smooth Surfaces: Clean cavity finishing
Application: Wood, plastics, soft metals

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Fine Detail: Ideal for small engravings
Clean Bottoms: Smooth flat-cut finish
Light Cutting: Easy on soft materials
Multi-Use: Signs, PCB, acrylic

4mm Flat Bottom Engraving Router Bits
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Cutting: Good for general engraving
Flat Finish: Clean pocket bottoms
Reliable Control: Smooth routing
Durable Edge: Longer life

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