Arnold .155 in Trimmer Line 109 ft (6-Refill Pack) — Serrated Heavy-Duty Xtreme Polymer

Arnold .155-inch x 109-foot Xtreme Professional Grade Trimmer Line is a serrated, high-mass polymer replacement spool designed for heavy-duty walk-behind edgers and frequent trimming tasks.

This heavy-duty refill pack gives landscape pros and serious homeowners a longer-lasting cutting line that moves more material per pass than standard residential lines. Constructed in the United States from a robust polymer with an edged, serrated profile and added mass, the line is engineered to improve cutting performance around tough areas like decks, driveways, and established beds. The pack contains six refills totaling 109 feet and includes a cutting tool for easy sizing and installation.

How does the serrated, extra-mass shape improve cutting?

The line’s edged profile concentrates force along thinner contact points while the added mass maintains momentum through dense grass and weeds. That combination helps slice and displace material more effectively than round residential lines without needing to increase speed.

• Serrated edges create cleaner cuts through thick growth.
• Heavy polymer mass keeps line stable under load.
• Works well on edges, around posts and near hard surfaces.

Which machines and jobs is this refill compatible with?

Arnold engineered this diameter to fit many popular walk-behind edgers and compatible trimmer heads from MTD, Swisher, Poulan, Ariens, Troy-Bilt, Craftsman and other manufacturers. It’s intended for larger tasks and more frequent use where standard consumer line wears out quickly.

• Designed for walk-behind edgers and heavy-use trimmers.
• Fits heads accepting .155-inch diameter line.
• Includes six refills to minimize downtime between jobs.

How do I install and maintain these refills for best life?

Installation is straightforward: measure and cut from the refill, wind to the head according to your trimmer’s instructions, and test spool tension before use. Regularly clear debris and replace knicks to extend life; avoid striking hard surfaces when possible to reduce premature wear.

• Includes a cutting tool for accurate length sizing.
• Wind tightly and evenly to avoid line feed issues.
• Store in a cool, dry place to preserve polymer integrity.

What are the physical specifications and what’s included?

The pack weighs about 1.07 pounds and measures roughly 3.75" tall, 3.5" wide and 17" deep in its retail packaging. It contains six refill segments that together total 109 feet of .155-inch diameter line plus a cutting tool for trimming the line to the proper length.

• .155-inch diameter line, serrated edged profile.
• Total length 109 feet across six refills; includes cutting tool.
• Made in the United States; product weight ~1.07 lbs.

Who is this for: Arnold’s Xtreme Professional Grade .155" line is aimed at landscaping professionals, municipal crews, and homeowners who perform frequent trimming or tackle larger properties. If you need a tougher, longer-lasting line for walk-behind edgers, perimeter trimming around hardscape, or heavy growth—this refill pack reduces reloads and improves cut performance without changing equipment.