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1-2-3 Blocks™ Matched Pair Hardened

Save 5%
Original price $19.99
Current price $18.99
SKU BL-123

123 blocks have many uses in the shop and can be used for machine set up, layout and inspection.


  • 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  
  • Available in 3 hole configurations: no holes, single hole and 23 each 3/8" through holes (5 holes tapped with 3/8" x 16 TPI threads and 18 untapped) 

Prop 65WARNING: Cancer and Reproductive Harm -

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