The Difference Between Brushed and Brushless Power Tools

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A close up picture of a yellow Dewalt brushless drill

Power tools have come a long way in recent decades, evolving from basic corded models to high-performance cordless systems that deliver professional-grade results on any jobsite. As technology has advanced, one of the most significant changes has been the shift from brushed motors to brushless motors. While both designs have their advantages, understanding how they differ, and which might best suit your workflow, can help you make an informed decision when investing in new tools.

In this blog, we break down what brushed and brushless motors are, how they work, the key differences between them, and how to choose the right option based on your needs. Whether you’re a contractor, craftsman, or dedicated DIYer, knowing the fundamentals will help you select tools that balance cost, performance, and longevity.

What Is a Brushed Motor?

A brushed motor is the traditional motor design found in power tools for decades. It relies on physical carbon brushes that make contact with the motor’s commutator to create mechanical energy. As electricity flows through the brushes, the motor spins, producing the torque needed to operate the tool.

This design is time-tested, simple, and reliable, which is why brushed motors have remained common even as newer technology emerges. Their straightforward construction makes them cost-effective and easy to service, which appeals to users who value affordability and ease of repair.

The Benefits of Brushed Motors

Lower upfront cost – Brushed tools are typically more affordable, making them a great entry-level choice.
Proven technology – Many professionals trust brushed motors because they are predictable and familiar.
Easy maintenance – Worn brushes can be replaced, extending the life of the tool at a low cost.
Consistent performance – Brushed motors produce reliable power and are well-suited for general applications.

The Limitations of Brushed Motors

However, because brushed motors rely on friction between the brushes and the commutator, they naturally produce:

More heat
More noise
Reduced efficiency
Faster wear over time

These factors can shorten the lifespan of a tool and require more frequent maintenance, especially when used in high-demand environments.

A red Milwaukee M18 Fuel brushless drill, drilling a hole in a steel stud

What Is a Brushless Motor?

A brushless motor is a more modern, electronically controlled system that eliminates carbon brushes altogether. Instead of physical contact, brushless motors use electronic circuitry and magnets to generate rotation. This allows the tool to adjust the power output automatically based on the task at hand.

Because there is no friction from brushes, brushless motors operate more efficiently and generate less heat. This not only boosts performance but also increases durability, making brushless tools highly popular among professionals seeking long-lasting, reliable equipment.

The Benefits of Brushless Motors

Higher efficiency – Brushless motors convert more battery energy into usable power.
Longer runtime – Users often see noticeably longer battery life, especially under heavy loads.
More power – Brushless motors can deliver greater torque and maintain performance under demanding conditions.
Reduced maintenance – With no brushes to replace, brushless tools often last longer.
Quieter, cooler operation – Reduced friction also means smoother and cooler performance.

The Limitations of Brushless Motors

Despite their advantages, brushless motors do come with considerations:

Higher cost – More advanced electronics and construction lead to a higher price tag.
Specialized repairs – If electronics fail, repairs can be more complex and costly.

Still, for many professionals, the long-term benefits far outweigh the initial investment.

Brushed vs. Brushless: What’s the Real Difference?

Although both motor types can power drills, saws, impact drivers, and more, the internal mechanics create noticeable differences. Understanding these distinctions helps users pick the right tool depending on how demanding the work may be.

1. Power & Performance

Brushless motors typically deliver more power because they experience no energy loss from brush friction. They also adjust power output automatically, giving you only what you need. Brushed motors deliver steady, reliable performance but cannot adapt to varying workloads.

2. Efficiency & Battery Runtime

Because brushless motors use energy more efficiently, they provide significantly longer battery life. This makes them ideal for extended use or jobsites where charging opportunities may be limited.

3. Durability & Lifespan

Brushless tools tend to last longer. Eliminating brushes means fewer internal components wear down. Brushed motors are still durable, but the brushes gradually degrade and must be replaced.

4. Maintenance Requirements

Brushed tools require occasional brush replacement.
Brushless tools require little to no internal maintenance.

For many tradespeople, reduced downtime makes brushless models more appealing.

5. Cost

This is often the deciding factor:

Brushed tools are budget-friendly.
Brushless tools cost more but provide efficiency and longevity that may justify the investment.

6. User Experience

Brushless tools generally deliver a smoother, quieter, cooler experience. Brushed tools may vibrate more and get warmer during continuous use.

A Brushed drill, drilling a screw into wood

Brushed vs. Brushless: Which One Is Right for You?

Selecting the right tool often depends on your work environment, usage frequency, and budget. While brushless technology offers clear advantages, brushed tools still have a solid place in the market.

Choose Brushed Tools If:

You are looking for a cost-effective option.
You use your tools occasionally or lightly.
You prefer traditional designs that are easy to service.
You want reliable performance without paying a premium.

Brushed tools remain a strong value, especially for DIYers, homeowners, and workers who don’t require top-tier performance.

Choose Brushless Tools If:

You need maximum power and consistent performance.
You use your tools daily or in demanding professional environments.
You want longer battery runtime and fewer interruptions.
You prefer a tool that runs cooler and quieter.

Brushless motors shine in high-stress environments where efficiency and longevity directly impact productivity.

Consider the Type of Tool

While brushless technology offers benefits across the board, some tools benefit more than others. For example:

Impact drivers and drills see major gains in torque and runtime.
Circular saws and grinders benefit from reduced heat and improved cutting speed.
Oscillating tools and sanders perform smoother and more consistently.

In other words, brushless technology becomes even more valuable in tools used heavily day after day.

The debate between brushed and brushless power tools largely comes down to cost, performance expectations, and long-term needs. Brushed motors offer dependable, affordable functionality backed by decades of proven use. Brushless motors, however, provide enhanced efficiency, power, and durability, making them the preferred choice for professionals and frequent tool users.

As cordless systems continue to evolve, brushless motors are becoming more common across major brands, offering tradespeople the performance and reliability required to stay productive on the jobsite. Yet brushed tools still bring value and reliability to those focused on affordability and simplicity.

Shop our available brushed and brushless power tools today!