SpeTool 3 Flutes End Mill for Aluminum 1/4" Dia Extra Long 4" Router Bit
SpeTool 3 Flutes End Mill for Aluminum 1/4" Dia Extra Long 4" Router Bit
SpeTool 3 Flutes End Mill for Aluminum 1/4" Dia Extra Long 4" Router Bit
SpeTool 3 Flutes End Mill for Aluminum 1/4" Dia Extra Long 4" Router Bit
SpeTool 3 Flutes End Mill for Aluminum 1/4" Dia Extra Long 4" Router Bit
SpeTool CNC End Mills for Aluminum Upcut Router Bit

SpeTool A02009 CNC SC Spiral Aluminum Cutting 1/4" Dia x 1" Cutting Length x 1/4" Shank x 4" Extra Long 3 Flute Up Cut Router Bit

SKU: AU3EXL-D1/4-FBA
Sale price$19.98 USD

Shipping calculated at checkout


Solid carbide up-cut spiral router bits designed for precise and efficient aluminum machining. Fast chip evacuation, reduced heat, and smooth finishes ensure long tool life and high-performance results for CNC routers and non-ferrous materials.

Excellent For Cutting:

  • Acrylic
  • Brass
  • Copper
  • Aluminum
  • Bronze
  • Non-ferrous Metal

TOOL SPECS: Solid carbide, 3-flute, up-cut spiral with 1/4" cutting diameter, 1/4" shank, 1" cutting length, and 4" overall length for use in routers with a 1/4" collet.

Only 8 units left
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Frequently Asked Questions

Up-cut spiral bits help lift chips away from the workpiece, improving chip evacuation and preventing gumming—this is especially important when cutting aluminum。

Single flute bits offer excellent chip clearance for aluminum, while 2–3 flutes can balance clearance and rigidity. Many users prefer single or 2-flute for better results。

Yes—using compressed air or mist helps cool the bit and clear chips efficiently. Many users pair it with a dust collector。

Even trying various cutter types (straight, 2- or 4-flute) doesn’t always eliminate chatter—it often reflects machine rigidity issues more than tool choice

Avoid down-cut or straight-flute bits when machining aluminum; they tend to cause gum buildup and poor chip evacuation.

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