Why do weed whackers/weed eaters often use plastic string and not metal wire?

Question

Why do weed whackers/weed eaters often use plastic string and not metal wire?

In: Other

Answer 1

To add on to what others have said, you absolutely *do* get grass trimmers with metal blades. But the whole point of the plastic wire ones is to be softer and to do less damage. If you wanted one that was more sturdy, you’d be better off with a blade than with a wire.