1-2-3 Deluxe Block Set
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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. 5 stainless
steel socket head 3/8” - 16 cap
screws, one hex key in a plastic
fitted case.
