Mower Blades

2PCS 6 Steel Razors Trimmer Head Reversible Weed Eater Blades Metal Mn65 Brush Cutter Blades Professional Grass Trimmer Head Replacement with 1 Pack 6 Teeth Adapter Kit for String Trimmers

4.1/5 (407 reviews)
$21.99
2PCS 6 Steel Razors Trimmer Head Reversible Weed Eater Blades Metal Mn65 Brush Cutter Blades Professional Grass Trimmer Head Replacement with 1 Pack 6 Teeth Adapter Kit for String Trimmers
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What It Is

This is a set of two 6-tooth steel trimmer blades (Mn65 hardened metal) with a 6-teeth adapter kit, designed to replace the string head on gas or electric brush cutters and string trimmers for heavy-duty weed cutting, brush clearing, and sapling trimming.

Fitment & Compatibility

  • Mounting hole size: Check that your trimmer’s shaft diameter matches the adapter’s center hole (typically 25.4mm/1 inch, but measure yours).
  • Shaft type: Works with straight shafts only—curved shafts may not align or have enough clearance.
  • Trimmer type: Fits most gas brush cutters and high-power electric trimmers (e.g., Echo, Stihl, Husqvarna, Ryobi, Craftsman) but not low-torque electric trimmers (under 18V) or weed eaters with plastic gearboxes.
  • Adapter kit: Included 6-teeth adapter replaces the standard string head; verify your trimmer’s spindle thread size (often M10x1.25 or M8x1.25) and confirm the adapter matches.
  • Deck size: N/A (trimmer head, not mower deck). Measure your guard/head clearance to ensure blades won’t hit the guard or housing.

Key Things to Know

  • Quality: Mn65 steel is durable but can dull quickly on rocky or sandy soil; sharpen with a file or angle grinder.
  • Installation: Moderate difficulty—requires removing the string head, installing the adapter, and tightening blade bolts. Use Loctite on the bolt to avoid loosening during use.
  • Safety: Blades are aggressive—wear heavy gloves, long pants, and eye/ear protection. They can kick back on thick brush or hit rocks, causing injury or trimmer damage.
  • Gotcha: These blades are not reversible (cutting edges are one-directional). If one side dulls, you must flip the entire blade set, which requires reinstallation.

Should You Buy It

Buy if you regularly clear thick weeds, briars, or saplings and want a durable, low-cost upgrade from string. Skip if you only trim grass on small lawns—string is safer and easier on trimmer parts. Best for heavy-duty users on gas brush cutters.

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