Whether you call it a trimmer, a weed whacker, or a weed eater, these precision lawn tools give your grass nice, crisp edges.

We tested top-rated cordless models on real yard tasks to find which ones cut cleanly, run longer, and handle tough weeds ...

Battery string trimmers start up effortlessly, perform quietly, and have zero emissions. Gas string trimmers have endless run times (as long as you refuel). Both styles of these tools remain popular, ...