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1-2-3 Blocks Matched Pair (2) 23 Holes Hardened Steel

$24.99
SKU BL-123

123 blocks are used for machine set up, layout and, inspection.

  • Contains 23 3/8" through holes (5 holes tapped with 3/8" x 16 TPI threads and 18 untapped) 
  • Made of hardened tool steel (RC 56-60)
  • Precision ground on all six sides
  • Overall size within +/- 0.0001"
  • Flatness and parallelism within 0.0001"
  • Squareness on all sides to within 0.0003" per inch
  • Pairs are matched to a tolerance of 0.0002"
  • Two (2) pieces per set  

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