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What is the best type of rotary tool bits for sharpening hedge trimmer blades. The stone grinding bits don't seem durable enough.

afrothetics
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    Per https://www.youtube.com/watch?v=qvFLD-6TI5Y an angle grinder seems to do wonders along with a good file. – MonkeyZeus Aug 09 '21 at 17:04
  • If you mean "like a Dremel" rotary tool, it's the wrong tool for tis job. – Ecnerwal Aug 09 '21 at 17:11
  • I use a 4” grinder and flapper disks (sandpaper flaps) I find the finer disks provide a better edge but grind lightly don’t force it and over heat the metal or it will loose the temper I do the same on my hay cutting bar (same thing as a hedge trimmer moving cutter and a fixed one). – Ed Beal Aug 09 '21 at 17:26
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    Why are we all putting answers in comments? Did the brain fairy make us forget how SO works? :D – isherwood Aug 09 '21 at 20:40

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