Bob Vila Radio: Sharpening Your Hedge Trimmer

Electric hedge trimmers are only as effective as their blades are sharp. Restore the original cutting power of the tool by taking the time to file down its now-dull cutting edges. Here's how.

Powered hedge trimmers are a tremendous time-saver for any homeowner who prefers to handle his own landscaping. But if the blades of the tool aren’t sharp, the hedge trimmer tears and shreds foliage instead of cutting it cleanly. Follow these simple steps to sharpen hedge trimmers safely.

How to Sharpen Hedge Trimmers

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Listen to BOB VILA ON SHARPENING HEDGE TRIMMERS or read the text below:

First, don a pair of gloves and protective goggles. After you’ve removed the bolts that hold the two blades together, clamp each blade, one at a time, into a bench vice. Next, run a metal file down each cutting edge, being sure to keep the file at the same angle as the cutting edge. Push the file in one direction only—not back and forth—and continue until the cutting edge looks shiny. To test for sharpness, draw the edge of a sheet of paper against the cutting edges. If they’re really sharp, the blades should slice the paper. Before reassembling the too, lightly coat the blades with linseed oil to protect against corrosion and preserve their useful lifespan.

Bob Vila Radio is a 60-second home improvement radio tip of the day carried on more than 186 stations in 75 markets around the country. Click here to subscribe, so you can automatically receive each new episode as it arrives—absolutely free!


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