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STM 2-4-6 Blocks, 23 Holes – 230-872

$68.99 $229.95

STM 2-4-6 Blocks, 23 Holes - 230-872 2" x 4" x 6" Heat treated and case hardened to HRC 55-60 . Precision ground and case hardened. Surface finish 616 micro inches. 23 holes5 are tapped in 3/8-16. Squareness: .0001" Parallelism: .0003"

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STM 2-4-6 Blocks, 23 Holes – 230-872

  • 2″ x 4″ x 6″
  • Heat treated and case hardened to HRC 55-60 .
  • Precision ground and case hardened.
  • Surface finish 616 micro inches.
  • 23 holes5 are tapped in 3/8-16.
  • Squareness: .0001″
  • Parallelism: .0003″

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