Thsi is a long shot, does anyone know where I could buy a graduated rod/bar/shaft at least 300mm long. This marking guage has one as an example of what I am after though it does not have to be round, I thought of using a 300mm rule but it most probably not rigid enough.

Edit: OOOOOPPPS https://www.ebay.com.au/i/2935871046...iABEgLfV_D_BwE


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