3 4 6 Flute Carbide Corn Cob Roughing End Mill PCB Milling Cutter for Fiberglass Bakelite Circuit Board Engraving
Introduction:
Our Carbide Corn Cob Roughing End Mill is a specialized cutting tool designed for high-efficiency material removal in PCB (printed circuit board), fiberglass, Bakelite, and other composite materials. Featuring a unique serrated (corn cob) design, this end mill aggressively removes material while minimizing vibration, ensuring smooth, clean cuts in abrasive and brittle substrates. Ideal for CNC routers, engraving machines, and PCB prototyping, this tool delivers superior performance and extended tool life compared to standard end mills.
Features:
✔ Multi-Flute Design (3/4/6 Flutes) – Optimized for fast chip evacuation and reduced cutting resistance.
✔ Solid Carbide Construction – Provides exceptional hardness and wear resistance, ideal for abrasive materials.
✔ Corn Cob (Serrated) Cutting Edge – Breaks chips efficiently, reducing heat buildup and preventing material delamination.
✔ Precision Ground Cutting Edges – Ensures clean, fray-free edges on fiberglass, G10, and epoxy boards.
✔ High-Speed Machining Compatible – Works with CNC routers, milling machines, and PCB engravers at high RPM.
✔ Available in Multiple Sizes – Common diameters: 1.0mm, 2.0mm, 3.175mm (1/8"), 4.0mm, 6.0mm.
Advantages:
✅ Faster Roughing & Material Removal – The serrated design allows deeper cuts at higher feed rates compared to standard end mills.
✅ Reduced Vibration & Chatter – Corn cob geometry dampens harmonics, improving cutting stability.
✅ Longer Tool Life – Carbide material resists wear, reducing tool changes and downtime.
✅ Cleaner Machining of Brittle Materials – Minimizes fiber tear-out and edge chipping in PCBs and composites.
✅ Versatile Applications – Suitable for both roughing and semi-finishing operations.
Typical Applications:
PCB milling & circuit board prototyping
Fiberglass, Bakelite, and epoxy composite machining
CNC routing of insulating materials & electronic enclosures
Engraving & slot cutting in plastics and reinforced polymers
Aerospace & automotive composite part manufacturing
Detailed Pictures:
Our workshop:
Promotion policy:
To help you experience our premium products, we’re excited to offer the following exclusive promotions for first-time buyers:
1.Free Test Samples
Get free samples (total value ≤ $20 USD) when you cover the international shipping cost.
Perfect for evaluating our product quality and performance risk-free.
2.$50 USD Discount on First Order
New customers can enjoy a $50 discount on the first order of $500 or more.
A great way to start our partnership with extra value!
Other products:
FAQ:
1. Are you a manufacturer or trading company?
We are a professional manufacturer of carbide tools which established in 2017.
2. Which CNC grinding machine do you use?
All of our carbide tools are produced by imported WALTER grinding machines.
3. Which shipping method do you usually use?
We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, ETC.
We also can send products to your shipping agent in China.
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3 4 6 Flute Carbide Corn Cob Roughing End Mill PCB Milling Cutter for Fiberglass Bakelite Circuit Board Engraving Images
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