Manufactured from high precision alloy steel. Heat treated to a hardness of 58 +/-2 HRC. Precision ground & inspected for a contrcitiy within 0.0001" & parallelism. UNIT IS HARDENED AND GROUND PARALLEL TO 0.0002" AND CENTERED AT BOTH ENDS SIMPLY PLACE BETWEEN CENTERS SET UP DTI TO RUN ALONG LENGH SET OF 4 PCs MT1, MT2, MT3 & MT4 TEST BARs.
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