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  1. #31
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    As far as I know it's a legitimate setting tool. Maybe it's a sign from the ancestors?
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

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  3. #32
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    Dec 2013
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    Another sad orphan of the de-industrialization of America, but it will serve my purposes nicely with its 0.00025" readability.

    surface gauge 2.jpg
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  4. #33
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    While trapped today in the proximity of my computer attending to important work I managed to take some measurements of four saws with the surface gauge. This is how I did it.




    And here are the results.



    The instrument was zeroed at a point about 3 mm below the gullets on either side of each tooth. The reading was taken at the point where the indicator needle achieved maximum deflection at the tip of each upward pointing tooth measured. All measurements are in thousandths of an inch. The Disston saw is a NIB D-95 from the HK Porter time. It's pictured on the indicator above.

    The saws set with pliers type setters are very similar, Disston is the best and the hammer set saw is worst echoing the results obtained above by looking at the laser reflection patterns.

    The study is limited because I don't have that many un-used factory sharpened saws and I have only one hammer set saw. Now to find that test strip and finish setting it...
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

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