9inch 36 Teeth Carbide Tipped Trimmer Blade for Weed Eater and Brush Cutter

What It Is

This is a 9-inch, 36-tooth carbide-tipped blade designed for string trimmers and brush cutters to replace standard trimmer line. It cuts through thick weeds, brambles, and small brush more aggressively than string, making it ideal for heavy-duty clearing tasks.

Fitment & Compatibility

Before buying, confirm your trimmer’s shaft type (straight or curved) and that it accepts a blade attachment—most straight-shaft models do, but curved-shaft units often don’t. Measure the arbor hole: this blade typically fits a 1-inch (25.4mm) center hole, but some trimmers use 20mm or 7/8-inch. Check your owner’s manual for maximum blade diameter; a 9-inch blade requires enough guard clearance and power (at least 25cc engine recommended). This is an aftermarket blade—verify your brand’s OEM part number if you need a guaranteed fit.

Key Things to Know

• Carbide tips last significantly longer than steel, but they’re brittle—avoid hitting rocks, concrete, or metal to prevent chipping.
• Installation requires a specific blade nut and washer (often included with your trimmer); never use a standard string head nut. Torque to manufacturer specs (usually 15-20 ft-lbs).
• Balance the blade before first use—an unbalanced blade vibrates excessively, damaging the trimmer head and shaft.
• Wear heavy-duty gloves and eye protection; this blade can kick back violently if it snags on thick material.

Should You Buy It

Buy this if you regularly clear heavy weeds, blackberry vines, or saplings and want a durable, low-cost upgrade from string. Skip it if your trimmer is under 25cc, has a curved shaft, or you mostly cut grass—string is safer and more efficient for light work.