Trimmer Line GEKO 3 mm x 12 m — round cutting cord for grass trimmers

Round trimmer line GEKO 3 mm x 12 m is a nylon cutting cord designed for use in grass trimmers and brushcutters that accept round-profile line. The line offers an even diameter of 3 mm along its 12 m length, providing predictable cutting behaviour for lawn edging, trimming around obstacles and clearing light to moderate weeds. It is compatible with spool-type and manual-feed heads that accommodate 3 mm round line and is intended for garden maintenance tasks where a simple, robust cutting cord is required.

Advantages

The GEKO 3 mm round line combines consistent thickness and flexibility, which helps maintain stable rotation and reduces unexpected vibrations during operation. Its nylon composition balances wear resistance with a forgiving profile that is less likely to damage surrounding surfaces than hard-edged profiles. The 12 m length provides enough cord to reload small spools or heads without frequent replacement, and the round profile simplifies winding and feeding in most standard trimmer heads.

Suitable for

• Trimming lawn edges and borders
• Clearing light to moderate weeds and grass
• Maintenance of small lawns and garden patches
• Use with spool and manual-feed trimmer heads compatible with 3 mm round line

Key specifications

• Line profile: round
• Material: nylon cutting cord
• Diameter: 3 mm
• Length: 12 m
• Compatible with: spool-type and manual-feed heads supporting 3 mm round line

How to use

Cut the required length from the 12 m cord and wind it onto the trimmer spool or insert it into the manual-feed head according to the tool manufacturer’s instructions. Ensure the trimmer is switched off and the spark plug is disconnected or battery removed before reloading to prevent accidental starts. After loading, set the correct line length and test rotation at low throttle to confirm even feed and clearance from the guard and housing.

Usage recommendations

For prolonged line life, avoid striking hard surfaces such as concrete, rocks or metal fixtures. Use the GEKO 3 mm round line at appropriate engine speed for the task: lower speeds for delicate edging and higher speeds for thicker or denser vegetation. Replace the line when significant wear, fraying or diameter reduction is observed to maintain cutting efficiency and safe operation.