Thread: How To: Optical Centre Punch
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Old 05-07-23, 13:55
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Mike Kelly Mike Kelly is offline
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Location: Victoria Australia
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Default Optical Centre Punch

These are handy for more accurate centre punching for drilling . I have one . Some people make them as a project rather than buying one. I normally measure 3 times and still manage to get it wrong.
https://m.youtube.com/watch?v=1V5H2O_0Udk
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Last edited by Mike Kelly; 05-07-23 at 15:08.
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