• ascnc@asianstarcnc.com

The Best CNC Bits for Copper Clad Boards: A Comprehensive Guide

Copper clad boards are widely used in the electronics industry for creating printed circuit boards (PCBs). The process of milling these boards using CNC machines requires the right type of CNC bits to achieve precise and efficient results. In this blog post, we will discuss the best CNC bits for copper clad boards, their features, and how to choose the right one for your project.

Introduction to CNC Bits for Copper Clad Boards

CNC bits, also known as end mills or cutting tools, are essential components of any CNC machine. They come in various shapes, sizes, and materials, each designed for specific applications. When it comes to milling copper clad boards, selecting the right CNC bit is crucial for achieving clean and accurate cuts without damaging the copper layer or the substrate.

Top CNC Bits for Copper Clad Boards

Here are some of the best CNC bits for milling copper clad boards:


1. V-Bit

A V-bit, or engraving bit, is a popular choice for milling copper clad boards due to its ability to produce clean and precise cuts. The V-shaped cutting edge allows for a high level of detail, making it ideal for intricate PCB designs.

Material:Carbide or high-speed steel (HSS)

Angle:30бу, 45бу, or 60бу

Application:Engraving and milling fine traces on copper clad boards


2. Flat End Mill

Flat end mills are versatile CNC bits that can be used for a variety of applications, including milling copper clad boards. They provide a smooth, flat surface and are ideal for cutting large areas of copper.

Material:Carbide or HSS

Diameter:1/32" to 1/8"

Application:Milling large areas of copper and cutting board outlines


3. Fish Tail End Mill

Fish tail end mills feature a sharp pointed tip, making them perfect for plunge cutting and creating small holes in copper clad boards. They are also suitable for milling fine traces and cutting board outlines.

Material:Carbide or HSS

Diameter:1/32" to 1/8"

Application:Plunge cutting, drilling holes, and milling fine traces

Factors to Consider When Choosing CNC Bits for Copper Clad Boards

When selecting the right CNC bit for your copper clad board project, consider the following factors:

1. Material:Carbide bits are more durable and provide better performance than HSS bits, but they are also more expensive. Choose the material based on your budget and the complexity of your project.

2. Size:The diameter of the CNC bit affects the level of detail and precision of your cuts. Smaller bits are ideal for intricate designs, while larger bits are suitable for cutting large areas of copper.

3. Cutting Speed and Feed Rate:Different CNC bits require different cutting speeds and feed rates. Consult the manufacturer's guidelines for the recommended settings to avoid damaging the bit or the copper clad board.

4. Flutes:The number of flutes on a CNC bit affects the speed of material removal and the quality of the cut. More flutes provide a smoother finish but may require slower feed rates.


Choosing the right CNC bit for your copper clad board project is essential for achieving precise and efficient milling results. By considering factors such as material, size, cutting speed, and the number of flutes, you can select the best CNC bit for your specific application. With the right tools and techniques, you'll be well on your way to creating high-quality PCBs for your electronics projects.

CNC Copper Machining

CNC Machining Copper Material is good electrical conductivity, thermal conductivity, it is soft and good for machining as it has high plasticity, it is easily and rapidly to carry out desired shape as machining cutter can run faster than other steel materials, and also reach high precision.

Copper has a shiny reddish-orange finish, which varies slightly based on the surface finish method. Copper can be media-blasted and polished to achieve many different cosmetic surface finishes.

CNC Machining Copper Parts are widely used in the manufacture of electrical wires, cables, electric brushes, electric spark, and other electrical devices and products.

CNC Copper Machining

Benefits of CNC Copper Machining

1/ CNC Machining Copper Parts are excellent in electricity conductivity, supporting very good electric function

2/ CNC Machining Copper Parts are soft, easy to design into different shape, also suitable for many processes

3/ Copper is easy for cutting and machining, its production efficiency is much higher than steel series

4/ Good propriety for bending and shaping

5/ Heat transferring function very good, high resistance, temperature stability, long durable using

6/ Stable surface, non-surface treatment is durable, electroplating is also used on copper parts

CNC Copper Machining

Composition And Property of CNC Machining Copper

Copper Property Alloy Type Content Melting Point Hardness Tensile Strength Density
Cu-based Zn, Sn, Si, Al, Ni 1083°C HB35-45 Low 8.9 g/cm3

Common Materials Code of CNC Machining Copper

Copper Alloy Workable Processes Surface Finishing for Copper Parts Materials Code
CNC Turning, CNC Milling, CNC Drilling, Molding, Forging, Fabrication, Welding, etc. Passivation, Anodizing, Plating, Chemical Polishing, etc. Copper 110
Copper 101
Copper 145
other more Copper Alloy

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


Advantages of Asianstar CNC Copper Machining

Strong Facilities

Asianstar many CNC and stamp machines allow us to produce various copper parts, different sizes, and structures are all well done by suitable solution

Long-term Skills

Asianstar professional engineers team has experience from year 2005, producing copper parts for world wide electric products

Stable Quality

Asianstar QC system and QC tools guarantee our products are perfect result. We have procedures to control copper parts quality during production

Competitive Price

Asianstar aim to buildup partnership with clients, always choose best suitable facilities to carry out the components in competitive prices


CNC Brass Machining


CNC Machining Brass material is used for wide range components, we support clients to produce a variety of parts such as gears, locks, electronics, pipe fittings, etc.

CNC Copper Machining


CNC Machining Copper material is soft and easy to machining on different shape of components. We mostly produce copper components for electric devices by machining and stamping

CNC Aluminum Machining


CNC Machining Aluminum materials is one of our most used materials. We support clients to turning, drilling or milling on aluminum material from size 0.5mm to 470mm

CNC Stainless Steel Machining

Stainless Steel

CNC Machining Stainless Steel are common material for wide range components, we produce Stainless Steel turning parts, milling parts, high smoothness components, etc.

CNC Titanium Machining


CNC Machining Titanium material brings components superb features, we use titanium to produce high precision work-piece for clients from aircraft, aerospace, medical devices

CNC Plastic Machining


Our CNC Machining Plastic materials includes ABS, HDPE, LDPE, Nylon, POM, Peek, Polycarbonate, etc. We produce them in high precision and high smoothness.


  • Q1.Do you support ODM/OEM?

    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

  • Q2.Do You Have Stock
  • Q3.What Is Your Production Capacity?
  • Q4.Where Is Your Factory?
  • Q5.Can You Provide Samples?
  • Q6.How About Your After-sales Service?
Get The Best Quotes Now