Professional Square Trimmer Line Ø 3.3 mm x 15 m Fluo Yellow on Hanging Card - Part Number: 600491

The heavy-duty professional square string trimmer line (part number 600491) is an aggressive, high-impact cutting monofilament engineered for high-displacement professional petrol brushcutters and commercial clearing tools. Formulated from premium high-density polyamide polymers, it features a heavy 3.3 mm nominal diameter with a distinct four-corner square profile and an overall length of 15 meters, supplied on a practical retail hanging card. The heavy line mass combined with sharp cutting edges delivers maximum kinetic energy and a sharp slicing action, easily cutting through dense brambles, thick reed beds, tough woody weeds, and overgrown scrub. The high-visibility fluorescent yellow color ensures outstanding line tracking in all field conditions.

Key Features & Cutting Advantages

• Heavy-Duty Square Cross-Section (Ø 3.3 mm): Four sharp edges concentrate kinetic impact energy, delivering a clean scythe-like cut through dense stalks and heavy woody vegetation that would fray standard round lines.
• High-Tenacity Copolymer Formulation: Specialized polymer blend offers superior resistance to abrasive wear, stone contact, and sudden impact against walls, dramatically reducing eyelet snapping.
• Anti-Welding Performance: Surface-treated to withstand high friction and heat generated under high RPM loads, preventing line strands from fusing inside the trimmer head spool.
• High-Visibility Fluo Yellow Finish: Enhances work-zone visibility, allowing operators to maintain accurate clearing boundaries around obstacles and perimeter fencing.
• Handy Hanging Card Dispenser: 15-meter length supplied with an integrated hang-tag, making it easy to store in the workshop or carry on a field tool belt for rapid reloading.

Technical Specifications

Application Areas & Head Compatibility

Application Parameter	Operational Guidance
Target Vegetation	Dense blackberry brambles, thick reeds, fibrous woody stalks, heavy scrub clearance, and roadside ditch clearing
Trimmer Head Compatibility	Suitable for heavy-duty bump-and-feed heads, manual reload heads, and universal aluminum multi-line fixed heads
Impact Performance	Resists splitting and premature breakage when operating along dry stone walls, concrete curbs, and wire netting

Usage & Storage Best Practices: Due to the heavy 3.3 mm cross-section, verify that the eyelets on your trimmer head support this thickness without excessive friction. To maximize polymer resilience and avoid snapping due to dryness, submerge the line in water for 24 hours prior to spooling. When clearing heavy scrub, always wear certified face protection or safety goggles, cut-resistant gloves, steel-toed boots, and confirm that the trimmer debris guard is firmly in place.