To sharpen trimmer blades, the common and effective method is to use sandpaper or a sharpening stone. First, clean the blades by removing any hair or debris. Then, place the blades flat on a sandpaper surface (commonly 150 grit followed by 220 grit) or a sharpening stone and move them back and forth with gentle, consistent pressure, keeping the blades flat at all times. After sharpening, clean off any metal filings or grit, oil the blades to maintain and lubricate them, and then reassemble and test the trimmer.
Detailed Steps to Sharpen Trimmer Blades
- Gather Tools: Sandpaper (150 grit and 220 grit) or a sharpening stone, blade cleaning brush, blade oil, and optionally a magnet to hold the blade safely.
- Clean the Blades: Remove hair and debris using a brush for a smooth sharpening process.
- Sharpening Process:
- Tape the sandpaper on a flat surface.
- Use the magnet to hold the blade flat on the 150 grit sandpaper; apply 3 to 5 pounds of pressure and pull the blade back and forth evenly for about 10 strokes.
- Move the blade to the 220 grit sandpaper and perform 20 strokes for buffing.
- If using a sharpening stone, move the blade flat against the stone in smooth, controlled strokes.
- Clean and Oil: After sharpening, clean off the metal filings and grit, then apply blade oil to lubricate and protect the blades.
- Reassemble and Test: Put the blades back together and test to ensure they cut smoothly.
This method works well for all types of trimmer blades and can significantly improve their performance and lifespan.
