July 17, 20188 yr comment_154385 Took a look at my Starret squares and found different markings for hardened on each. The 12" has hardened marked on the rule and the square frame but not on the center finder. The 6" set has hardened marked on the rule only. I know this is an original set for sure because I still have the box. The angle head has hardened marked on the rule only also. It is not stamped on the frame. I wonder if the hardened rules were used with the common sets but a true hardened set would have the frames marked as hardened too. Edited July 17, 20188 yr by HandyDan Report
July 18, 20188 yr comment_154456 My 6" (Catalog #11H from the original box) is marked on the rule only. There is nothing on the square frame other than Starrett. Report
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