Sawtooth 175 Trimmer Line, Heavy Duty Sawtooth Weed Wacker String .175, Weed Eater String .175 inch-by-468ft-5lb Dual Core String Serrated Trimmer Line with Line Cutter

What It Is

The Sawtooth 175 is a heavy-duty, dual-core serrated trimmer line designed for commercial-grade weed whacking. It’s built for clearing thick weeds, brush, and overgrowth on medium-to-large properties, using a .175-inch diameter that fits most standard gas and high-end electric trimmers.

Fitment & Compatibility

Before buying, verify your trimmer’s line diameter compatibility—.175-inch is thicker than standard .080 or .095 lines, so it only works with trimmers rated for .155 to .175 lines. Check your owner’s manual or the trimmer head for a stamped diameter. This line is aftermarket, not OEM-specific, so it fits any trimmer that accepts .175-inch dual-core line (e.g., Echo, Stihl, Husqvarna, Ryobi). The 468-ft spool is large; ensure your trimmer head can hold a full spool or plan to manually wind shorter lengths. No deck size to check—this is for the cutting head, not a mower deck.

Key Things to Know

• Quality: Dual-core construction with serrated edges increases cutting power against woody stems but wears faster on abrasive surfaces (e.g., sidewalks, rocks). Expect shorter lifespan than round line.
• Installation: Moderate difficulty—the serrated texture can snag during winding. Use the included line cutter to trim evenly; avoid over-tightening the spool to prevent jams.
• Common gotchas: The .175 diameter may overload smaller electric trimmers (under 12 amps) or cause premature wear on low-torque motors. For bump-feed heads, the thicker line might not advance smoothly—test feed before full use.
• Noise: Serrated edges create a louder, more aggressive cutting sound compared to smooth line.

Should You Buy It

Buy this if you need a tough, heavy-duty line for clearing dense brush and thick weeds on a gas-powered trimmer and don’t mind swapping spools more often due to faster wear. Skip it for light grass or if your trimmer is a smaller electric model—you’ll get better results with a thinner, round line.