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CNC Drill Bit Guide

Many aspects go into selecting the type of bit you should be using with your CNC machine. We help you identify what drill bit for your CNC machine is right, whether it is a drill bit for wood or steel, we'll helo you understand the types of CNC drill bits.
May 12, 2021

Many aspects go into selecting the type of bit you should be using with your CNC machine. It can vary greatly by your CNC Machine and material. This blog post and infographic will help you decide what cnc drill bit is right for your specific CNC Machine, CNC drill bits for wood, cnc drill bits for steel, and various types of cnc drill bits.

This guide and infographic will help you in that process of picking out what cnc drill bit is going to be best for your project:

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

CNC Drill Bit Material

One of the first questions you need to ask yourself when deciding what drill bit to go with 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 materials.

High-speed steel

Cobalt steel


Carbide bits

Drill Bit Finish

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

Bit Length Class

Jobbers'-length bits

Maintenance-length bits

Short-length bits

Extended-length bits

Reduced-shank length bits

Taper-shank length bits

CNC Drill Bit Style

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 a pivotal part 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.