How to Sharpen a Center Punch

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Video tutorial on how to sharpen a center punch. After usage a center punch can either dull or chip which does not make it mark as efficiently as it should. A center punch can be resharpened to make it functional again, there is no need to throw it away. Make sure you wear safety glasses when doing this procedure. An angle gauge can be used, but is not necessary. The more practice you get, the better you will become at sharpening center punch. I do this by free hand, no special tools are required for the procedure.

Tools/Supplies Needed:

  • bench grinder
  • center punch
  • safety glasses

Step 1:

The tip angle of a center punch should be about 60 degrees, this ensure it will mark correctly and have a long life expectancy. Too sharp of a point will dull quickly and too blunt of a point will not make a quality center mark. When using a bench grinder, be sure to take the correct safety precautions along with wearing safety glasses.

Step 2:

When sharpening, the grinder wheel must turn in such a manner where it'll pull the material away from the tip. The center point of the bit stays centered and be careful not to overheat it so it does not wreck the temper of the metal. When sharpening, move the center punch along evenly while spinning on the grinding wheel which ensures even wear on the grinding wheel.

Step 3: Al Done!

Once done, you should be left with something such as this.

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    4 Discussions

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    Exarmyguy

    2 years ago

    I put the cente punch in my drill then turn in against the grinder. It makes an even grind that way.

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    pfred2

    2 years ago

    When faced with this task I made a V tool guide block for one of my bench grinders. That helped me keep the point centered.

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    BeachsideHank

    2 years ago

    Pity the poor center punch, almost never thought of when tools are in need of sharpening, yet performs one of the most basic functions in the workshop. Nice to see it get the attention it deserves. ☺

    1 reply
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    4DIYersBeachsideHank

    Reply 2 years ago

    Thank you :) Simple tool, but extremely helpful.