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Pair of Ultra-Precision 2x3x4-Inch Parallel Blocks 23 Holes 3/10,000ths Precision

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$40.17

$ 17 .99 $17.99

In Stock
  • Accuracy: high precision, the parallel block is a piece with 23 holes 2x3x4 inches precision in three parts per million.
  • Quality: made of high quality steel, high hardness, not easy to deform, not easy to wear, durable, the six sides of the two blocks are hardened and ground.
  • Operation: simple operation, easy to use.
  • Product includes: a pair of 23 holes 2x3x4 inches parallel blocks.
  • Note: Please confirm the precision when purchasing to avoid buying the wrong one, so as not to delay your time.


This parallel block is a pair of precision online and quality online a 2x3x4 inches precision at three parts per million precision and has 23 holes, made of high quality steel, wear-resistant and durable.
Easy to use, even for the novice whites.
Package includes: a pair of 23 holes 2x3x4 inches parallel blocks with three ten thousandths precision.

Squareness: 0.0003"/1"
Parallelism: ±0.0003"

Dimensional accuracy: ±0.0005"
Height accuracy in pair: ±0.0003"
Hardness: HRC 56-62
Surface smoothness 6-16 micro inches
5 holes tapped to 3/8-16unc

others are untapped