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Why Brushless Motors on Power Tools are Better

Posted by Katy | Toolstop on 27th Dec 2020

This Toolstop blog explains the differences between power tools with brushless motors vs brushed motors, and why brushless motors are better and the benefits they bring.

Power tools have revolutionised the way we approach various tasks, whether it's construction, DIY projects, or home maintenance. Among the many innovations in power tool technology, brushless motors have gained significant attention. In this blog post, we will delve into the world of brushless motors, highlighting their benefits, and discussing the differences compared to their brushed counterparts.


What is a brushless motor?

A brushless motor is a type of electric motor that does not have brushes or a commutator. Instead, it uses a controller to regulate the flow of electricity to the motor's windings. This makes brushless motors more efficient and durable than brushed motors.

Why Brushless Motor

What is the difference between a brushed and a brushless motor?

The main difference between a brushed motor and a brushless motor is that a brushed motor has brushes and a commutator, while a brushless motor does not. The brushes and commutator in a brushed motor are responsible for transferring power from the battery to the motor. However, the brushes and commutator can wear out over time, which can reduce the efficiency and lifespan of the motor. Brushless motors do not have brushes or a commutator, so they are more efficient and durable.


Benefits of brushless motors in power tools

Increased Efficiency

Brushless motors are more efficient than brushed motors, which means they use less power and can provide longer runtimes. The absence of physical brushes eliminates the friction and energy losses typically associated with brushed motors.

Extended Motor Life

Brushed motors require regular maintenance and brush replacement, while brushless motors operate virtually maintenance-free. This longevity translates into longer tool life, reducing downtime and overall tool replacement costs.

Increased Durability

Brushless motors are more durable than brushed motors and can withstand more wear and tear. This means they have longer lifespans and require less maintenance.

  • Increased Power-to-Weight Ratio: Due to their improved efficiency, brushless motors can deliver more power while maintaining a compact size. This enhanced power-to-weight ratio allows for the development of lighter and more ergonomic power tools without compromising performance, making them ideal for demanding tasks such as drilling through concrete or driving screws into hardwood.
  • Smoother Operation: Brushless motors offer smoother and more consistent power delivery, resulting in reduced vibrations and noise during operation.
  • Quieter operation: Brushless motors are quieter than brushed motors, which makes them ideal for use in noise-sensitive environments.

Here are some additional things to consider when choosing between a brushed and brushless motor:

  • Application: If you will be using your power tool for heavy-duty tasks, then a brushless motor is the better option. Brushless motors are more durable and can handle more wear and tear.
  • Budget: Brushless motors are more expensive than brushed motors. If you are on a tight budget, then a brushed motor may be a better option.
  • Noise level: Brushless motors are quieter than brushed motors. If you will be using your power tool in a noisy environment, then a brushless motor may be a better option

How Does a Brushless Motor Work?

There are 3 key points that make brushless power tools better than brushed:

  • Fewer moving parts
  • Less build-up of harmful heat
  • Better efficiency energy-wise

Brushless motors use a series of magnets and electromagnets to generate rotational motion. These motors employ sensors to detect the position of the rotor and use this information to adjust the power supply accordingly. This sensor feedback system enables precise control and efficient operation.

What are the drawbacks of brushless motors?

The main drawback of brushless motors is that they are more expensive than brushed motors. However, the increased efficiency and durability of brushless motors can offset the higher initial cost.

Are brushless motors worth the price?

Whether or not brushless motors are worth the price depends on your needs. If you need a power tool that is efficient, powerful, durable, and quiet, then a brushless motor is a good option. However, if you are on a budget, a brushed motor may be a better option.


What tools benefit from having a brushless motor?

Brushless SDS+ Rotary Hammer Drills - Big-hitting tools that require plenty of power will always benefit from brushless motors. Guaranteed longer runtime from fully charged batteries, better durability to handle vibration and lighter motors all add up to a superior performance from brushless SDS+ rotary hammer drills.

Brushless Angle Grinders - As with SDS+ drills, angle grinders require loads of efficient delivery and handling of power from the battery in order to work properly. The brushless motor ensures that the tool runs cooler, only draws the power it needs and gets you longer runtimes per charged battery.

Brushless Impact Drivers - Finally, a brushless impact driver is the sort of tool you’ll be reaching for all day long, ready for driving massive screws, fasting metal nuts or even making bit holes with spade bits. Of course, keeping the size of the tool compact helps when working in tight spaces, and of course, running a super-efficient brushless motor results in very long runtimes from your battery. You can’t go wrong with switching up to a brushless impact driver.


Brushless motors offer a number of advantages over brushed motors, including increased efficiency, power, durability, and quiet operation. If you are looking for a high-performance power tool, a brushless motor is a good option.


Brushless Tools at Toolstop:

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