Trimmer Line John Gardener G73947 — cutting line 3 mm diameter, 100 m, square profile with core

John Gardener G73947 trimmer line is a 3 mm diameter, 100 m spool of cutting line designed for use in compatible grass trimmers and brushcutters. The line has a square profile with an internal core that increases bending resistance and maintains cutting edge stability during standard mowing and edging tasks. It is intended for routine garden and lawn maintenance where a balance of durability and cutting performance is required.

Advantages

The square profile with a core provides consistent cutting performance and improved strength compared with simple round lines of the same diameter. The 3 mm thickness offers a reliable compromise between flexibility and power transfer from the trimmer head, while the 100 m length reduces the need for frequent spool replacement. The construction helps resist breakage and wear when trimming grass, light weeds and lawn edges.

Suitable for

• Home lawn mowing and maintenance
• Edging around sidewalks, driveways and flower beds
• Trimming grass and light weeds in yards and small gardens
• Use with compatible consumer and semi-professional trimmer heads

Key specifications

• Line diameter: 3 mm
• Length: 100 m spool
• Profile: square cross-section
• Internal structure: reinforced core for added strength
• Intended material: cutting grass, light weeds and edging vegetation

How to use

Cut the required length of line according to your trimmer head’s instructions and wind it onto the spool following the head’s directional arrows and attachment method. Ensure the line is secured and seated properly to prevent slipping during operation. Fit the spool to a switched-off and cooled trimmer, reassemble the head components, and test the line feed at low throttle before normal operation. Replace worn or fractured sections of line promptly to maintain cutting efficiency.

Usage recommendations

For best results, use the line in trimmers specified to accept 3 mm diameter lines and follow the trimmer manufacturer’s safety and maintenance guidelines. Avoid striking hard surfaces such as stones and concrete which accelerate wear and can cause line breakage. Store the spool in a dry place away from direct sunlight to preserve material properties.