Power tools have come a long way in recent years, and one of the most significant upgrades has been the shift from brushed to brushless motors. While both types power everything from drills to grinders, the internal mechanics — and resulting performance — are vastly different.
What Is a Brushless Motor?
In traditional brushed motors, electricity flows through carbon brushes, which make physical contact with a rotating commutator. This friction causes:
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Wear over time
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Heat generation
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Occasional sparking
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A need for regular maintenance
In contrast, brushless motors eliminate the need for brushes entirely. Instead, they use electronic controllers to direct power, improving efficiency and precision.
Key Benefits of Brushless Motors
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Higher Efficiency, Less Heat
Electronic commutation reduces energy loss due to friction, making brushless motors up to 30% more efficient. Less heat also means longer continuous usage without overheating. -
Longer Tool Life
With fewer moving parts that wear out, brushless motors last significantly longer than their brushed counterparts. You’ll spend less on replacements and repairs. -
More Power in a Smaller Package
Brushless motors deliver higher torque while remaining compact and lightweight — ideal for tools that need to be powerful without being bulky. -
Lower Maintenance
No brushes = no brush changes. That alone saves time and reduces service downtime. Ideal for busy workshops or pros on the go. -
Smart Features & Battery Optimization
Many brushless tools can “communicate” with their batteries to adjust power output based on resistance — such as harder materials or increased load — resulting in longer battery life and smarter energy use.
Where You’ll See Brushless in Action
Brushless motors are now common in:
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Cordless drills and impact drivers
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Saws, especially circular and reciprocating
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Grinders and sanders
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High-performance garden tools (trimmers, blowers, chainsaws)
In cordless tools especially, the extra efficiency of brushless motors directly translates into longer runtime — a huge advantage when working away from outlets.
Are Brushless Tools Worth It?
Absolutely — especially if you use your tools frequently or for demanding tasks. While brushless tools often cost a little more upfront, the long-term savings in durability, performance, and battery life make them a smart investment for professionals and serious DIYers alike.
For casual users, the choice depends on your priorities: if you're looking for something reliable, powerful, and low-maintenance, brushless is the way to go.
Krank Tip
At Krank, we prioritize stocking power tools equipped with brushless motor technology. Whether you’re upgrading your gear or just starting your toolkit, we recommend choosing brushless tools for better performance and long-term reliability.
