Corn Bit size selection for PCB fabrication, FR4 machining, carbon fiber cutting, fiberglass milling, and G10 composite routing. Available diameters from 0.6mm to 1.5mm with 1/8 inch shank compatibility for desktop CNC machines, prototype manufacturing, circuit board production, and precision composite work.

Corn Bit | for Carbon Fiber, PCB & FR4 CNC Endmill

0.6mm
$19.00
$19.00
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Corn Bit size selection for PCB fabrication, FR4 machining, carbon fiber cutting, fiberglass milling, and G10 composite routing. Available diameters from 0.6mm to 1.5mm with 1/8 inch shank compatibility for desktop CNC machines, prototype manufacturing, circuit board production, and precision composite work.
  • Corn Bit size selection for PCB fabrication, FR4 machining, carbon fiber cutting, fiberglass milling, and G10 composite routing. Available diameters from 0.6mm to 1.5mm with 1/8 inch shank compatibility for desktop CNC machines, prototype manufacturing, circuit board production, and precision composite work.
  • Corn Bit cutting carbon fiber on a desktop CNC machine. Precision carbide CNC endmill for carbon fiber, FR4, PCB milling, fiberglass, G10, and composite material machining. Designed for Carvera Air, Makera Z1, and other ER11 spindle systems requiring clean cuts in abrasive materials.
  • TiN coated CNC Corn Bit for PCB milling, FR4 cutting, carbon fiber machining, fiberglass routing, and G10 composite fabrication. Precision 1/8 inch shank desktop CNC cutter compatible with Carvera Air, Makera Z1, and ER11 spindle systems for composite material machining.
  • Corn Bit size selection for PCB fabrication, FR4 machining, carbon fiber cutting, fiberglass milling, and G10 composite routing. Available diameters from 0.6mm to 1.5mm with 1/8 inch shank compatibility for desktop CNC machines, prototype manufacturing, circuit board production, and precision composite work.
  • Corn Bit cutting carbon fiber on a desktop CNC machine. Precision carbide CNC endmill for carbon fiber, FR4, PCB milling, fiberglass, G10, and composite material machining. Designed for Carvera Air, Makera Z1, and other ER11 spindle systems requiring clean cuts in abrasive materials.
  • TiN coated CNC Corn Bit for PCB milling, FR4 cutting, carbon fiber machining, fiberglass routing, and G10 composite fabrication. Precision 1/8 inch shank desktop CNC cutter compatible with Carvera Air, Makera Z1, and ER11 spindle systems for composite material machining.
Corn Bit | for Carbon Fiber, PCB & FR4 CNC Endmill

Corn Bit | for Carbon Fiber, PCB & FR4 CNC Endmill

$19.00
$19.00
Shipping calculated at checkout.
Bit Size

In stock: 1-3 business days

Not every material cuts like aluminum.
FR4, carbon fiber, fiberglass, G10, and other composite materials are abrasive, layered, and demanding on tooling. Standard cutters often struggle with chip evacuation, edge quality, and tool life when machining these materials.

Whether you're producing prototype circuit boards, machining carbon fiber components, corn Bits are designed specifically for these challenging applications. Their unique cutting geometry helps break chips into smaller pieces and improve evacuation during machining, making them a popular choice for PCB fabrication, carbon fiber cutting, and composite material processing.

Common Materials
• Carbon Fiber
• FR4
• Fiberglass
• G10
• Garolite
• Composite Laminates

Specifications
• 1/8 inch (3.175mm) shank
• Compatible with ER11 collet systems
• Designed for abrasive composite materials, not metal

What's Included
• One Corn Bit in the selected size

For the modern maker.
Ships from the Pacific Northwest, USA.

Every order supports Aetherium Innovations and our mission to develop tools and technologies that lower the barriers in the skilled art trades.

Bench-tested

Modular by design

Direct builder support

Pacific Northwest built

Build & Support

Aetherium products are developed around real workshop and field workflows. If you need dimensions, compatibility guidance, replacement components, or help adapting this product to your setup, contact the workshop before ordering.
Shipping & Returns

The production estimate shown near the purchase button is the current working lead time for this item. Shipping is calculated at checkout.

If an order arrives damaged, does not match what you received approval for, or you need to request a return, contact us with the order number and photos when applicable. We will review the situation directly and help determine the right next step.

Complete the system

Why Aetherium

Built like someone has to use it.

We design around real workflows, direct feedback, and the belief that a good tool should expand what its owner can do.

Bench-testedDeveloped around real workshop problems, not trend forecasts.
Small-batchProduced deliberately with clear lead times and direct accountability.
AdaptableModular, repair-minded systems designed to evolve with the work.
Direct supportCompatibility question? You can talk to the person who built it.
Unsure whether this fits your setup?Send the workshop a photo or a short description before you order.
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