There’s been a lot of buzz about power tools with no brush. You may be wondering “why now?” when brushless motors have been around for over 50 years. In their past iteration, they’ve been used almost exclusively for highly specialised precision tools. Now, with the introduction of the Milwaukee Brushless Kit and other brands, people can use this technology to improve portability. It gives home DIY heroes access to brushless innovation. With that said, we have all the information you need to know about going brushless on your next tool.


Long Story Short


If you’re not interested in the nitty gritty of the mechanical and technical details of brushed vs brushless, you’ll be delighted to know that the idea is pretty simple. In general, brushless tools are the higher-performing variant. Removing the brushes from the motor means there will be less friction. This simple concept leads to less energy lost in friction and heat, with more energy going to creating higher torque. Brushless motors also have fewer wearable parts, which leads to more extended durability. So, overall, that means you’ll achieve:


  • Higher RPM
  • Lesser heat generation
  • Longer battery run time
  • Extended motor life
  • Lighter Weight
  • More compact
  • Silent operation




Despite their fantastic benefits, the Milwaukee brushless kit is more suited to some tools than others. They are ideal for devices that operate under light loads where there are no rapid changes in RPM. These would be tools that are difficult or impossible to stall, such as rotary hammers, and impact wrenches and drivers. Also, Brushless technology requires a more sophisticated system, making it more expensive to manufacture. So, the more you use the tool, the more value you will get out of your brushless motors.



Technical Details of Brushed vs. Brushless Power Tools


To further understand the benefits of brushless tools, let’s refresh the way traditional power tools work. The standard DC motor is brushed. It’s made up of the following:


  • An inner rotor (armature)
  • Brushes
  • Commutator
  • Outer permanent magnets
  • Axle


A magnetic field is created when an electric current runs through the brushes, which are in constant contact with the commutator. The magnetic field of the armature interacts with the permanent magnets that cause the motor to rotate.


So, as you can see, the Milwaukee brushless kit is a beneficial tool that makes using power tools easier and more convenient. Check it out now! Visit the official Milwaukee Australia website and view all the brushless power kits we have on sale.