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ECHO Black Diamond® Trimmer Line — Razor-Sharp Cutting for Lawn Care

ECHO Black Diamond® trimmer line is a twisted, square-profile nylon cord designed for ultra-fast, clean cutting on grass, weeds and tougher brush. The diamond-shape geometry creates razor-sharp edges that slice through vegetation rather than tearing it, so users can finish trimming in fewer passes. It fits most gas-powered trimmer heads and is sold in two diameters — .095 in. and .105 in. — to suit different cutting jobs and equipment.

What Makes This Trimmer Line Stand Out

What separates this line from standard round cord is the combination of a square cross-section and a twisted profile. The twisted design reduces vibration at the trimmer head and lowers noise during operation, while the sharp edges deliver a noticeably cleaner cut on overgrown grass and field turf. It is built from durable nylon for medium to heavy-duty applications and is engineered for one-pass cutting efficiency.

Cutting Performance and Compatibility

For homeowners and lawn-care professionals, the cutting profile matters as much as the diameter. The square-twisted shape keeps the edges biting into the plant instead of relying on blunt force, which translates to faster work and less fatigue on long jobs.

• Design: Square, twisted — produces sharp edges and reduces vibration
• Diameter Options: .095 in. and .105 in. — match the line to trimmer power and job intensity
• Material: Nylon — durable construction for medium to heavy-duty use

Who Is It For

The ECHO Black Diamond® line is the right choice for homeowners and professional landscapers who want a faster, cleaner cut and are willing to switch from standard round cord to a shaped profile. It works well on routine lawn edges, fence lines and overgrown field grass, and it pairs naturally with ECHO SRM and DSRM trimmers as well as most other gas-powered trimmer heads on the market.