What is a brushless ESC, really? Well, generally, it’s usually a microcontroller with a whole lot of power transistors hanging off it to drive three phases of brushless motor coils. [Frank Zhao] ...

The Worx Nitro 40V Brushless 15″ Cordless String Trimmer comes pretty much preassembled. You only need to snap the upper and lower shaft together and attach the auxiliary handle and safety guard. When ...

We may receive a commission on purchases made from links. String trimmers go by plenty of names. Weed whacker, weed eater, line trimmer — they all do the same job, and that's cutting grass and weeds ...

We may receive a commission on purchases made from links. One of the best things about spring and summer is watching your garden grow and your grass become greener as it shakes off the winter.

The professional-grade Bosch GRT18V-40 brushless string trimmer came out in early 2026, and I got a chance to try one soon thereafter. Recent generations of battery-powered landscaping tools have ...