Tri-Blocks, 3in. L, 2in. W, 1in. H, 23, PR

product price: $261.99
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Key Features

  • Length 3 in
  • Width 2 in
  • Material Steel
  • Height 1 in
  • Squareness 0.0001 in per 1 in
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Product Information


Length 3 in
Width 2 in
Height 1 in
Size 1 in x 2 in x 3 in


Item Tri-Block Pair
Material Steel
Squareness 0.0001 in per 1 in
Parallelism 200 micron in
Holes 23
Tolerance +0.0001 in/+0.0003 in
With Holes Yes
Number of Blocks Matched Pair
Hole Style 3/8"-16 Tapped
Case Type Wooden Case
Includes Case Yes
Long Form Calibration Certificate No


These Suburban B-123-H23-M Tri-Blocks are the perfect tool for calibrating your equipment. With a wide range of sizes, you can use them to check your measurements at various stages. Featuring both long and short form certifications, these tri-blocks are suitable for quality control purposes. Made of steel, they have an accuracy of +0.0001 in/+0.0003 in over their length and width respectively. The included squareness certification ensures that the blocks are within 0.0001 in per 1 inch over their length, while the parallelism certification ensures that they are within 200 microns over their width. These Tri Block Pairs by Suburban will give you precise measurements every time.

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