Tri-Blocks, 4in. L, 3in. W, 2in. H, 23, PR, Suburban, Mfr#: B-234-H23-M

Tri-Block Pair, Length 4 in, Width 3 in, Height 2 in, Number of Holes 23, Number of Blocks Matched Pair, Included Certification Not Applicable, Long Form Calibration Certificate No, Size 2 in x 3 in x 4 in, Case Type Wooden Case, Hole Style 3/8 In.-16 Tapped, Includes Case Yes, Material Steel, Squareness 0.0001 in per 1 in, Parallelism 300 micron in, Tolerance +0.0001 in/+0.0004 in, With Holes Yes, 1 Pair