1-2-3 & 2-4-6 Blocks
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- Used in layout and setup work. Each set consists of 2 matched, hardened and precision-ground blocks. The squareness on all sides is within .0001” per inch. The blocks are supplied with a plus allowance of .0001” to .0003” to allow nominal lapping. Five 3/8”-16 tapped holes are provided for clamping.
