When it comes to trimming the edges of your lawn, or areas around steps and washing lines, it’s advisable to use a grass trimmer. The short nylon line, which spins at speeds of up to 10,000rpm will provide a clean and straight cut of the grass.
When the trigger switch on the grass trimmer’s handle is squeezed, the electric motor spins the rotating head. As the head spins, a length of nylon line wrapped on a bobbin scythes grass.
Only the section of nylon line protruding from the rotating head is used for cutting, whilst a guard plate protects the user from injury.
As the worn line snaps, a fresh length must be fed from the bobbin, although some models have an automatic feed system.