Standard nylon trimmer line breaks constantly, wraps around obstacles, and struggles with thick weeds near paving, stones, or tree stumps. This steel wire trimmer head replaces your existing head with a wound-wire construction that cuts through grass, weeds, and moss without blades and without running out of line. The stainless steel disc and high-grade steel wires are built to outlast multiple spools of nylon, and the 5 mm centre hole fits most lithium electric grass trimmers with a 5.5 mm shaft. Available in 3-wire and 6-wire configurations.
Why It Stands Out
✓ High-grade wound steel wire — rust-resistant steel wire cuts through grass, weeds, moss, and overgrowth on contact, with no line to replace or rewind between sessions.
✓ Blade-free design — wound wire construction reduces the risk of injury compared to metal blade attachments, while still cutting effectively through dense vegetation.
✓ Stainless steel disc — the central disc is stainless steel for corrosion resistance and long-term durability through repeated outdoor use.
✓ Positioning hole keeps wires secure — the unique centre positioning hole locks the wire in place during use, preventing slippage and maintaining consistent cutting contact.
✓ 5.91 in (150 mm) diameter — wide cutting radius covers more ground per pass compared to standard nylon head sizes.
✓ Fits most lithium electric trimmers — compatible with trimmers using a 5.5 mm shaft and 5 mm hole. Fits most compact lithium battery-powered grass trimmers.
✓ Two configurations — 3-wire for lighter garden maintenance, 6-wire for heavier cutting through thicker weeds and overgrowth.
Where It Works Best
This trimmer head is suited to residential lawn and garden maintenance where a standard nylon head fails to cope with thick or established weeds, moss between paving joints, overgrowth along fences and walls, and vegetation near stones, curbs, or tree stumps where nylon line breaks on impact. It is practical for homeowners maintaining lawns, gardens, driveways, courtyards, and pathway edges on a regular basis. The blade-free wound wire construction makes it safer around hard obstacles than metal blade attachments, while still providing significantly more cutting power than nylon line.
How It Works
Remove your existing trimmer head by unscrewing it from the shaft according to your trimmer’s instructions. Thread the steel wire trimmer head onto the 5.5 mm shaft through the 5 mm centre hole and secure. The positioning hole and locking mechanism hold the head firmly in place during operation. Start the trimmer and the wire arms rotate at speed, cutting through vegetation on contact. The wound wire construction allows the arms to flex slightly on impact with hard surfaces rather than snapping, extending the working life of the head compared to rigid blade alternatives.
Comparison Table
| Feature |
This Wire Trimmer Head |
Nylon Line Head |
Metal Blade Head |
| Line replacement needed |
✓ No — steel wire lasts much longer |
✗ Frequent replacement |
✓ No |
| Cuts thick weeds |
✓ Yes — wound wire construction |
✗ Breaks on contact |
✓ Yes |
| Blade-free safety |
✓ Yes — wound wire only |
✓ Yes |
✗ Sharp metal blades |
| Moss and surface growth |
✓ Effective |
✗ Poor |
✓ Effective |
| Works near stones/curbs |
✓ Wire flexes on impact |
✗ Snaps on contact |
⚠️ Risk of kickback |
| Universal fit |
✓ 5.5 mm shaft / 5 mm hole |
Varies by brand |
Varies by brand |
Which Configuration to Choose
| Option |
Wire Count |
Best For |
| 3-Wire (Style A) |
3 wound wire arms |
Regular lawn edges, light-to-moderate weeds, general garden maintenance |
| 6-Wire (Style B) |
6 wound wire arms |
Thick overgrowth, heavy moss, dense weeds, more aggressive cutting tasks |
Care and Maintenance
After each use, clear any grass or debris wrapped around the wire arms. Rinse with water if needed and allow to dry before storage. Inspect the wire arms periodically for wear — if individual wires become significantly shortened from use, the head can be replaced. Store in a dry location when not in use.
Product Specifications
| Specification |
Detail |
| Material |
High-grade rust-resistant steel wire + stainless steel disc |
| Diameter |
5.91 in (150 mm) |
| Centre hole diameter |
0.20 in (5 mm) |
| Shaft compatibility |
5.5 mm shaft trimmers |
| Weight |
0.37 lb (0.17 kg) |
| Wire design |
Wound wire, blade-free |
| Configurations |
3-wire (Style A) / 6-wire (Style B) |
| Compatibility |
Lithium battery-powered electric grass trimmers |
Package Includes
1 × Steel Wire Trimmer Head (configuration as selected)
