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1-2-3 Set Upo Blocks Matched Pair (2) Single 1/2" Hole

SKU 5133302
This is a matched set (2 each) of professional quality 1-2-3 blocks They are precision ground and case hardened to RC 55-62 on all six sides. They contain one untapped 1/2" through hole. Overall size is within +/- .0002". Flatness and parallelism are within .0002". Squareness on all sides to within 0.0002". Pairs are matched to a tolerance of 0.0002". There are 2 pieces per set.

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