Brush cutter/string trimmer accessory Flo 89459 — 3 mm diameter, 1 pc

Flo 89459 replacement filament for brush cutters and string trimmers is a single 3 mm diameter line supplied as one piece for use with compatible handheld trimmers. The line is designed as a wear part for cutting grass and light vegetation, offering an aggressive cutting profile that improves mowing efficiency where a firmer, more durable line is required. This accessory is suitable for routine garden maintenance, edging and clearing small overgrowth when a 3 mm line is specified by the trimmer manufacturer.

Advantages

The Flo 3 mm filament uses a serrated "Christmas" profile with sharp edges that deliver more aggressive cutting action than a round line, improving the ability to tackle tougher grass and light weeds. Supplied as a single piece, this replacement line is straightforward to install and replace in compatible spools or heads and provides consistent performance while in use. Its 3 mm diameter balances cutting strength with manageable load on the trimmer motor, making it appropriate for handheld units rated for this line size.

Suitable for

• Routine lawn maintenance with robust grass and light weeds
• Garden edging along paths and borders
• Clearing small overgrowth and patches of coarse vegetation
• Use in handheld trimmers and brush cutters that accept 3 mm line

Key specifications

• Line diameter: 3.0 mm
• Profile: serrated "Christmas" profile with sharp edges for aggressive cutting
• Form: single replacement filament piece designed for manual installation in compatible trimmer heads
• Application: cutting grass and light vegetation, edging and trimming

How to use

Turn off the trimmer and disconnect the power source or remove the spark plug cap for petrol units before replacing the filament. Open the trimmer head or spool according to the manufacturer's instructions, fit the 3 mm Flo filament into the appropriate winding or cutting slot, and secure it as specified for your model. Reassemble the head, restore power, and test the trimmer at low speed to confirm correct installation and balance before full operation.

Usage recommendations

Do not use the serrated 3 mm line on young, poorly rooted or delicate lawns because its aggressive cutting profile may cause damage. Select this filament for coarser grass, weeds and edging work, and follow the trimmer manufacturer's guidance on compatible line diameters to avoid motor overload or damage to the cutting head.