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13-672-1 SPI 2-3-4 Block Set

13-672-1 SPI 2-3-4 Block Set

  • Save $ 47.20

Matched 2-3-4 Block Set

Features include...

  • Hardened Steel to RC 55-60, ground to surface finish 6-16 microinches.
  • Squareness of all sides within 0.0003" per inch
  • Five tapped holes (3/8" - 16), 18 untapped holes (3/8" dia.)