
GROZ (India) website says (01143) or SS/6G. "From the blade to the face of the workpiece" is listed as 0.00028. I have no reason to doubt it as it was more square than I could measure with other squares I have. That's more than enough for my purposes. It's not stainless steel, which is normal for what I do. It was well lubricated. I'm happy with it.

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