Stihl CF3 Carbon Trimmer Line 2.4 mm x 70 m — Cross-Shaped, Abrasion-Resistant for Cleaner Edging

STIHL CF3 Carbon 2.4 mm x 70 m is a heavy-duty, three-component cross-shaped trimmer line engineered for longer life and cleaner edging on brush cutters and trimmers.

Designed to pair with STIHL machines and compatible with many other brands, this 70‑metre spool of CF3 trimmer line combines a robust polyamide construction and a cross profile to deliver steady cutting performance in residential and light-commercial mowing. The orange/black/grey colour scheme helps visibility when working near borders or in mixed vegetation, while the three-component build prioritises abrasion resistance and flexibility for fewer line changes.

How does the CF3 cross shape improve cutting performance?

The cross-shaped profile slices through grass and light brush more efficiently than round line, creating cleaner edges and a more even finish. Its angled faces reduce snagging on stems and minimize vibration for smoother operation.

• Cross profile generates sharper cutting edges for tidier trimming.
• Reduced snagging lowers motor load and vibration.
• Consistent line shape helps produce a uniform cut along borders.

What makes the three-component material durable?

CF3 uses a three-layer polyamide construction: a tough core for strength, a wear-resistant outer layer, and a flexible intermediate layer to absorb impacts. This combination extends usable life and keeps the line intact when encountering stones, hard stems or ground contact.

• High-strength polyamide core resists stretching and snapping.
• Outer layer formulated for abrasion resistance against rough surfaces.
• Intermediate layer adds flexibility to reduce brittle failure.

Will this line work with non-STIHL trimmers?

Yes — the 2.4 mm diameter is a common size that fits many professional and consumer brush cutters. Always confirm your machine’s recommended line thickness and spool capacity before installing to ensure safe and effective operation.

• Compatible with many models from Husqvarna, Jonsered, Partner, Dolmar, Solo and others.
• 70 m spool provides multiple refills or extended on-site use.
• Check spool housing and cutter head specs for 2.4 mm lines before use.

How do I install and store the 70 m spool to keep line performance?

Wind the line evenly and free of kinks when fitting to your spool, following your trimmer’s winding direction. Store the unused spool in a cool, dry place away from direct sunlight and chemicals to prevent material degradation.

• Follow trimmer head instructions for winding direction and anchor points.
• Keep line clean from oils and solvents that can weaken polyamide.
• Cut fresh lengths to recommended feed size for optimal balance and cut quality.

Who is this for? Landscapers, property owners and garden professionals who need a balance of durability and cutting accuracy will benefit from the STIHL CF3 2.4 mm x 70 m trimmer line. It’s well suited to users who want fewer line changes, cleaner edges around beds and fences, and material robust enough for occasional contact with rough surfaces. If you use a brush cutter or trimmer that accepts 2.4 mm line and you prefer a visible, high-performance option from a trusted brand, this spool is a practical choice.