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52-771-3 SPI 2-3-4 Block Set 1-2-3 Blocks SPI

52-771-3 SPI 2-3-4 Block Set

$ 217.99$ 174.39

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Product Description

Matched 2-3-4 Block Set

Features include...

  • Supplied in Matched Pairs
  • 23 Holes
    • 5 tapped 3/8-16
    • 18 untapped
  • 0.0002" Parallelism
  • Precision Ground and Case Hardened on all 6 sides.
  • Hardened Steel to RC 55-60.