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Special of the Week

Sale price good through Tuesday, October 21, 2014
Limit: One per customer

Blocks, 1-2-3 Ultra Precision

$19.95 On Sale

Regularly $29.95

Save 33%

Blocks, 1-2-3 Ultra Precision
  • Threaded holes are 3/8"-16 thread
  • Through holes are 5/16"
These ultra precision 1-2-3 blocks are ground and case hardened on all sides to 55-60 Rc. They are parallel within 0.0001", flat within 0.0001" and square within 0.0001". They are up to 0.0003" oversize for lapping.

Each set includes two matched blocks.

The blocks have 23 holes through them, 5 are threaded 3/8-16 NC.

Set includes a matched pair of 1-2-3 blocks, 5 3/8-16 x 1.5" socket head cap screws and an appropriately-sized hex wrench. Furnished in a fitted case.

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