You can buy a 1" precision standard for less than $20 if you want.
Search ebay or amazon.
I bought mine from Amazon, it's made by Mitutoyo/Japan.
But like Doubs said, if it "zeros" when closed- you are good to go for most work!
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03man(Don Voigt); Luger student and collector.
Looking for DWM side plate: 69 ; Dreyse 1907 pistol K.S. Gendarmerie
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