Oregon Duoline 2.7 mm × 140 m (round, dual material)
Oregon's 2.7 mm round dual-material line on a 140 m spool — anti-weld surface and carbon-loaded core for mid-size and larger petrol trimmers on coarse grass.
In short:This Oregon line is 2.7 mm round, dual-material line — an anti-weld surface over a carbon-loaded core — on a 140 m donut spool. Oregon claims it's up to 30% more durable than standard round line and less prone to breaking. At 2.7 mm it suits mid-size and larger petrol trimmers cutting coarse grass and weeds; check your head accepts 2.7 mm before buying.
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Pros
- Claimed up to 30% more durable than standard round line
- Anti-weld surface suits hot, hard-working heads
- Big 140 m spool
Cons
- Too thick for small and most cordless trimmers
- Third-party seller on Amazon.co.uk in October 2026
What it is
A 2.7 mm round Oregon line with the same dual-material build as 2.4 mm Duoline: an anti-weld outer surface over a carbon-loaded core. It comes on a 140 m donut-style spool (1.14 kg). Oregon claims it’s up to 30% more durable than standard round line, with better resistance to breakage and fraying. When we checked in October 2026 it was sold by a third-party seller on Amazon.co.uk.
Which machines?
2.7 mm needs a petrol engine with enough torque to keep it at cutting speed and a head rated for that diameter — typically mid-size and larger brush cutters such as those taking the Husqvarna T35 (2.4–2.7 mm). On small trimmers it overloads the motor or won’t fit the eyelets. Our line size guide explains how to choose.
Using it well
Wind it evenly and not too tightly, and soak the spool in water for a few hours before winding to keep it supple. Round line is the best profile for edging against paths and walls; for cleaner cuts in open grass, an edged line like square 3 mm cuts more cleanly. Compare all lines in the best brush cutter line.
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