Back to blog
CNC drill bits can vary depending on the machine and material being used - FactoryFix

CNC Drill Bit Guide (with Infographic)

Many aspects go into selecting the type of bit you should be using with your CNC machine. FactoryFix helps you identify the right drill bit with our guide and infographic.

The type of bit you should be using with your CNC machine will depend on several factors. It will vary both on your CNC Machine and material. This blog post and infographic will help you decide what drill bit is right for your specific CNC Machine so you can get the job done efficiently.


View FactoryFix’s Career Path page to learn more about CNC Machine Operator Jobs & Salaries

In this article, we will go through the following types of bits:

One of the first factors to consider when deciding what drill bit to choose is the material. Whether you're looking for a quick and easy pick or a long-lasting solid choice, the material of your bit is essential. Here is a breakdown of the different options.

High-speed steel

Cobalt steel


Carbide bits

Uncoated CNC drill bits

Black-oxide and black-and-gold-oxide bits

Titanium-nitride (TiN) coated bits

Titanium-aluminum-nitride (TiAlN) and aluminum-titanium-nitride (AlTiN) coated bit

Jobbers'-length bits

Maintenance-length bits

Short-length bits

Extended-length bits

Reduced-shank length bits

Taper-shank length bits

Spiral-flute bits

Parabolic spiral-flute bits

The Final Product

Despite the ever-changing roles of computer controls, CNC production is still widely dependent on machinery. This makes choosing the accurate machine tools and parts an essential step of the process. For drilling machines, like routers and mills, the drill bit choice has a significant influence on the product's production. Whether it is material, finish, length, or style, choosing the right tool is pivotal.


Make sure to use our quick guide infographic to understand better how bits stack up against one another. FactoryFix is proud to offer resources for manufacturing workers, whether it’s information about the CNC Machine Operator career path or a job board with new opportunities.