5-Pound Heavy Duty Twisted Trimmer Line 155-inch-by-512-ft, Commercial 0.155 Twist String Trimmer Line in Spool, 0.155" Nylon Weed Eater String with Line Cutter Fits Most String Trimmer

What It Is

This is a 5-pound spool of 0.155-inch twisted nylon trimmer line designed for commercial-grade trimming. The twist shape provides better cutting performance on thick weeds and light brush compared to standard round line, and the long 512-foot length suits high-volume users or multiple trimmers.

Fitment & Compatibility

Before buying, check your trimmer’s line diameter limit—0.155 inch fits most standard gas trimmers and many heavy-duty electric models, but not all. Verify your trimmer head accepts spool-fed line (not pre-cut pieces) and that the spool core size matches your head’s arbor or retention system. This is an aftermarket line, not OEM-specific, so it works with brands like Echo, Stihl, Husqvarna, Ryobi, and Craftsman as long as the head accommodates 0.155 inch. Measure your current line diameter with calipers or check the manual—0.155 is thicker than residential .080 or .095, so it may not fit lightweight electric trimmers. No deck or mower size applies; this is strictly for handheld string trimmers.

Key Things to Know

• Cutting performance: The twisted shape improves weed-slicing power and reduces line breakage on thick vegetation, but it creates more vibration than round line—expect a rougher feel at high RPM.
• Installation difficulty: Moderate—the spool is pre-wound, so you just drop it in, but the 0.155-inch thickness can be stiff to feed through small eyelets. Some trimmers may require rewinding onto a smaller spool (not included).
• Line cutter included: The package claims a built-in line cutter, but it’s often a small blade on the spool—ensure your trimmer head has a compatible bump-feed or tap-feed mechanism to advance line, or you’ll need to manually pull.
• Durability: Commercial-grade nylon lasts longer than residential line, but on rocky or paved edges, expect faster wear—keep the spool handy for refills.

Should You Buy It

Buy this if you have a heavy-duty gas trimmer and regularly tackle thick weeds, blackberries, or overgrown areas—the 0.155-inch twisted line offers real cutting power and the 5-pound spool is cost-effective for frequent users. Avoid it if your trimmer is a lightweight electric model or you only trim grass; the thicker line will bog down the motor and be overkill.