Brown & Sharpe 1-2-3 Blocks

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Brown & Sharpe 1-2-3 Blocks

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Brown & Sharpe 1-2-3 Blocks
  • Hardened and precision ground on all six surfaces.
  • Squareness on all sides to .0001".
  • Surface finish is 6-16 micro inches.
  • Five 3/8"-16 tapped holes, 18 clearance holes.
  • Includes protective molded case, five bolts and one hex key.
  • 6" long.
  • Made of high alloy steel, hardened to 52-58 RC for ¼? Parallel Set, 58-63 RC for 1/8? and 1/32? Parallel Sets.
  • 1/4" Parallel Set: Ground parallel within .0002", height variation .0002".
  • 1/8" Parallel Set: Ground parallel within .0002", height variation .0015".
  • 1/32" Parallel Set: Ground parallel within ± .0001", height variation ± .0015".
  • Protective molded case included.