These more efficient and durable power tools are invading the DIY market. So how do they work?
Lately there has been a lot of talk in the power tool world about brushless motors. While the technology isn’t new to tools, it has recently gained traction due to some high-profile releases by Makita, Milwaukee, DeWalt, and others.
“Brushless motors have been around since the 1960s, being used in industrial and manufacturing applications for [motors that drive] conveyor belts,” says Christian Coulis, cordless product manager for Milwaukee Tools. However, Makita was the first company to use them in power tools. “[It was] first in our assembly division in 2003 for the defense and aerospace industries,” says Wayne Hart, Makita’s communications manager, “and then again in 2009 when we released a brushless three-speed impact driver.”
Manufacturers claim that brushless tools have added performance and durability and that they’re smarter than the average tool. So what exactly is the technology behind these new motors?
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