Arnold Maxi-Edge Commercial Grade String Trimmer Line - .105-Inch x 90-Feet

What It Is

The Arnold Maxi-Edge .105-inch x 90-Feet string trimmer line is a commercial-grade, twisted-square replacement line designed for heavy-duty trimming and edging in gas, electric, and battery-powered string trimmers.

Fitment & Compatibility

Before buying, confirm your trimmer accepts .105-inch (2.7 mm) diameter line—this is a medium-to-heavy gauge, not for lightweight electric trimmers that require .065 or .080 line. Check your owner’s manual or the trimmer head for the max line diameter. This line fits most universal trimmer heads (bump-feed, fixed, or reload spools), but will not work with pre-wound spools that require a specific brand fit. It is an aftermarket replacement, not OEM, so verify your trimmer’s head design can accommodate twisted-square line—some heads are optimized for round line only.

Key Things to Know

• Commercial-grade durability: Twisted-square shape cuts through thick weeds and grass faster than round line, but it is stiffer and may cause more vibration in lightweight trimmers.
• Installation is straightforward: You cut your own lengths from the 90-foot spool. Use a sharp blade or shears to avoid fraying. Most users need 15–25 feet per reload.
• Watch for overloading: On smaller electric trimmers, .105-inch line can bog down the motor or cause overheating if you trim heavy brush. Stick to gas or high-torque battery trimmers for best results.
• Storage tip: The line can become brittle with UV exposure. Keep the spool in a cool, dark place when not in use.

Should You Buy It

Buy this if you have a medium-to-heavy-duty gas or high-torque battery trimmer and need a durable, fast-cutting line for thick weeds, briars, and edging along driveways or sidewalks. Skip it if you own a lightweight electric trimmer or prefer pre-wound spools for quick reloads.