2-Pack 9" 36 Teeth Carbide Tipped Brush Cutter Blades - Heavy Duty Steel for Lawn Mower, Trimmer & Garden Tools

What It Is

This 2-pack of 9-inch, 36-tooth carbide-tipped brush cutter blades is designed for heavy-duty clearing of thick weeds, brush, and small saplings. It attaches to compatible string trimmers, brush cutters, and some lawn mowers fitted with a blade adapter, replacing trimmer line for aggressive vegetation management.

Fitment & Compatibility

• Mounting hole size: Measure your trimmer/mower shaft’s center hole diameter—common sizes are 20mm, 25.4mm (1 inch), or 25mm. This blade typically fits 20mm or 25.4mm arbors, but confirm with a caliper.
• Blade shape & adapter: These are circular saw-style blades, not universal. You’ll likely need a specific blade adapter or nut (not included) to attach to your trimmer head. Check your unit’s manual for “brush blade” compatibility.
• Deck or trimmer type: Not for standard push mower decks. Designed for straight-shaft gas trimmers, brush cutters, and some electric trimmers with a metal blade-capable head. Avoid for curved-shaft or low-torque trimmers.
• OEM vs aftermarket: Aftermarket; no major brand fitment guarantee. Verify your trimmer model (e.g., Stihl FS, Echo SRM, Husqvarna 525) supports a 9-inch blade—most accept 8–10 inch brush blades.

Key Things to Know

• Carbide tips are replaceable but brittle: They stay sharp longer than steel but can chip on rocks or concrete. Inspect after each use.
• Installation requires a torque wrench: Over-tightening strips the nut; under-tightening causes wobble. Use manufacturer-recommended torque (typically 15–25 ft-lbs).
• 36 teeth = slower cutting speed: More teeth mean a finer cut but require more power. Best for high-torque trimmers (25cc+); low-power units may bog down.
• No safety guard included: You must use the trimmer’s brush blade guard. Never run without one—blade can eject debris at high speed.

Should You Buy It

Buy this if you have a high-torque, straight-shaft brush cutter (25cc or larger) and need an affordable 2-pack for heavy weed/sapling clearing where trimmer line wears out quickly. Skip if you have a small electric trimmer, curved shaft, or need a universal fit—fitment is not guaranteed without measuring. The 3.7 rating suggests decent value for the price, but verify your arbor size and adapter requirements first.