Silver Streak Razor Trimmer Line, .105 1/2 lb. Donut, ea, 1

What It Is

The Silver Streak Razor Trimmer Line (.105″ diameter, 1/2 lb. donut) is a replacement trimmer line for gas, electric, or battery-powered string trimmers. It’s designed for medium-duty trimming of grass and light weeds, not heavy brush or thick vines.

Fitment & Compatibility

• Line diameter: .105″ (2.7 mm). Check your trimmer’s manual or head for the maximum line size it accepts. Most standard home-use trimmers accept .080″–.105″; .105″ is on the thicker side.
• Donut vs. spool: This is a loose donut (not pre-wound on a spool). You must hand-wind it onto your existing trimmer head. Works with bump-feed, fixed-line, or Speed-Feed heads.
• Brand/model: No brand-specific fitment. Fits any trimmer that accepts .105″ line (e.g., Echo, Stihl, Husqvarna, Ryobi, Toro, Craftsman). Not for mini trimmers or edgers that take .065″–.080″.
• OEM vs. aftermarket: Aftermarket. Equivalent to many OEM .105″ lines but not an exact match for proprietary heads (e.g., Stihl AutoCut). Verify your head’s line capacity before buying.

Key Things to Know

• Cutting performance: The “razor” edge (square or star-shaped profile) cuts cleaner than round line but wears faster on abrasive edges (concrete, asphalt). Expect shorter life vs. round line on rough surfaces.
• Installation difficulty: Easy if you’ve wound a trimmer head before. Soak the donut in warm water for 10–15 minutes to soften the line—makes winding easier and reduces breakage.
• Common gotcha: .105″ is too thick for many light-duty electric trimmers. If your trimmer’s manual says “max .095″ or .080″,” this line will jam the head or overload the motor. Measure your existing line diameter with calipers if unsure.
• Quantity: 1/2 lb. donut gives about 40–50 feet of line. Good for 3–5 full head refills on a standard trimmer.

Should You Buy It

Buy this if you have a medium-duty gas or high-power electric trimmer that accepts .105″ line and you want cleaner cuts on grass and light weeds without paying for premium brands. Skip it if you trim mostly against hard surfaces (sidewalks, curbs) or need a thinner line for a small electric trimmer—you’ll get better life and compatibility from a round .080″ or .095″ line.