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StuartBaker104

Old spring caliper competition

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I was given some old tools recently. Just for amusement, I thought I’d share a picture of this, now I’ve cleaned it up and worked out what the calibration is. I was going to just tell you all the answer but let’s see if anyone can guess. The photo doesn’t quite show it clearly but the scale is marked 6, 12, 18, etc. Full travel is 72 which is about 13.5mm. By the way the prize is bragging rights not the calipers!

 

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