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How to Sharpen Mower Blades Without Removing Them

How to Sharpen Mower Blades Without Removing Them

The 5-Minute Sharpening Trick

Dull blades tear grass rather than cutting it, leaving jagged edges that turn brown and invite disease. While a professional bench grinding is recommended once a year, you can easily touch up your blades mid-season without the hassle of removing them.

What You Need

  • Heavy leather gloves
  • A spark plug wrench
  • A rotary blade sharpener attachment for a power drill

Step-by-Step Guide

Step 1: Safety First! ALWAYS disconnect the spark plug wire before reaching under the mower. This prevents accidental engine starts.

Step 2: Tip the Mower correctly. Tip the mower so the carburetor and air filter are facing UP. If you tip it the wrong way, oil will flood the engine.

Step 3: Use the Drill Attachment. The rotary sharpener has a plastic guide that rests against the back of the blade, ensuring the grinding stone hits the edge at the perfect angle. Run the drill along the cutting edge 3-4 times on each side.