How to achieve precise lawn edge trimming with a String Trimmer? Posted by : admin / Posted on : Nov 14,2025

1. Choose the appropriate cutting width and speed

Select a 1.5mm–2.5mm thin rope based on your lawn width, maintaining a speed of 7000–9000 rpm for a fine cut edge.

A thinner rope diameter produces a smaller cut surface during rotation, making it easier to create clean lines along paths, flower beds, or stones.

2. Use the “tilt cutting” technique with the String Trimmer

Hold the String Trimmer in the lower middle of the handle, tilting your body slightly so that the cutting head is at a 30°–45° angle to the ground.

This tilt angle allows the rope to cut a small section of the lawn near the edge before returning to the straight line, creating a sharp edge.

3. Use a guide guard or edge protector

Some models from NINGBOAOSHENGMACHINECO.,LTD. are equipped with an adjustable edge protector. The protector should be flush against hard edges (such as brick walls or slate) to prevent the rope from crossing.

Adjust the shroud so that only 1-2cm of the cut edge is exposed, ensuring both lawn integrity and precise edge trimming.

4. Segmented Trimming and Inspection

Divide the lawn edge into several segments. After each segment is completed, stop the machine to check the cutting effect, fine-tuning the angle or shroud position as necessary.

Adopt the "coarse to fine" principle: first use a slightly thicker rope to quickly remove large grass roots, then switch to a thinner rope for precise finishing.