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2 Pc Ultra Precision 1-2-3 Blocks .0001'' Set Holes Milling Drilling Machining

4.9 (1) Write Review
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$30.99

$ 14 .99 $14.99

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  • 2 Pc Ultra Precision 1-2-3 Block Set
  • 23 Holes ; Squareness: .0001" ; Parallelism: +/- .0001" ; Height Accuracy in Pair: +/-.0001" ; Hardness: HRC 56-60
  • Finished from 6-16 micro inches ; Nominal Tapping: 0.0001" to 0.0003"; 5 holes tapped to 3/8-16 and others untapped ; Precision ground on all sides ; Squareness on all sides
  • Product includes: Five stainless steel socket head cap screws, One hex key, fitted case
  • Case Included ; Case Overall Dimension: 8-1/4''L x 5''W x 2''H *Estimate Only*; Shipping Weight: 2.75 Lbs


  • 2 Pc Ultra Precision 1-2-3 Block Set
  • 23 Holes
  • Squareness: .0001"
  • Parallelism: +/- .0001"
  • Height Accuracy in Pair: +/-.0001"
  • Hardness: HRC 56-60
  • Finished from 6-16 micro inches
  • Nominal Tapping: 0.0001" to 0.0003"
  • 5 holes tapped to 3/8-16 and others untapped
  • Precision ground on all sides
  • Squareness on all sides
  • Product includes: Five stainless steel socket head cap screws, One hex key, fitted case
  • Case Included
  • Case Overall Dimension: 8-1/4''L x 5''W x 2''H *Estimate Only*
  • Shipping Weight: 2.75 Lbs

Pc Macdonald
2025-08-10 15:29:17
Manufacturer stated that thru holes were 3/8" in diameter. They are smaller, and a 3/8-18 machine screw will not pass thru.A nice pair of paperweights.