Buying guide · 4 min read
Brushless vs brushed motors — what it actually means on the jobsite
Brushless motors are more efficient, last longer, and run cooler. Here's what that means for your buy decision, and when a brushed tool is still the right call.
What a brushless motor actually is
A traditional (brushed) motor uses carbon "brushes" that physically contact a spinning commutator to transmit current. They wear out — that's why old drills eventually fail. A brushless motor uses electronic sensors and magnets instead, with nothing to wear. Result: longer life, more torque per watt, less heat, less maintenance.
When to pay the brushless premium
If you're a contractor using the tool daily, always brushless. The extra $30-80 pays for itself in 6-12 months of saved replacements. For weekend home projects — drilling a few holes, hanging a shelf — a brushed tool like the DeWalt ATOMIC or Milwaukee 2407-20 will last a decade and costs half as much.
The one exception
Oscillating multi-tools are still mostly brushed and that's fine — they don't run long enough under load to matter. Same for most sanders. The brushless premium really earns its keep on impact drivers, drills, circular saws, and recip saws — tools that run long under load.
FAQ
Do brushless tools run longer on a single battery charge?+
Yes — typically 25-50% more runtime for the same task because less energy is lost to heat and friction inside the motor.
Are brushless tools waterproof or weatherproof?+
No. Brushless just describes the motor. Some tools are IP-rated for weather and some aren't — check the spec sheet regardless of motor type.
Do brushless tools need maintenance?+
Less than brushed. You'll still want to blow out the motor vents occasionally and check the chuck, but there are no brushes to replace.