How to sharpen knives with a dremel

Written by k.a. francis
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How to sharpen knives with a dremel
A Dremel can be used to sharpen knives. (knife image by apeschi from

A Dremel is an all-purpose tool used by professional woodworkers and crafters, and it can also be used for everyday household chores. A Dremel can drill holes, cut material and small pieces of wood and sharpen knives. Using a Dremel to sharpen should be done carefully, since improper sharpening can cause the blade to dull or break. When done correctly, the Dremel can add an effective edge to pocket knives, small steak knives and smaller butcher knives.

Skill level:

Things you need

  • Aluminum oxide grinding stone bit
  • Polishing pad
  • Polishing compound
  • Safety glasses
  • Table vice

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  1. 1

    Attach the aluminum oxide grinding stone bit to the Dremel.

  2. 2

    Place the knife in a table vice. Tighten the vice to make sure the knife is secure and will not move during the sharpening process.

  3. 3

    Put on your safety glasses. This will decrease the chance of injury during the grinding process.

  4. 4

    Grind the knife blade at a 25-degree angle. Remove the knife from the vice, turn the knife over and place it back in the vice. Grind the other side of the blade at a 25-degree angle.

  5. 5

    Replace the grinding stone bit with a polishing pad bit. Place a dollop of polishing compound on the polishing pad. Apply the compound to the knife blade using the polishing pad. Polish the blade until the compound is absorbed and the blade is shiny. Remove the blade from the vice, turn over and put the blade back in the vice. Polish the other side of the blade, adding more compound to the polishing pad.

Tips and warnings

  • Don't grind the blade too fast or too long. Doing either will heat the blade and cause the knife edge to lose temper. This will cause the blade to dull more quickly.
  • Be careful handling knives. Even a dull knife can inflict a nasty cut.

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