ALL-CARB 2-3-4 Blocks Matched Pair 23 Holes (2x3x4) 234 Precision Ground Machinist Set Up Blocks .0003 HRC 55-62

Package includes:
Matched pair blocks(2 blocks)


Precision ground and case hardened to RC 55-62 on all six sides.
23 each 3/8 inch through holes (5 tapped with 3/8-16 threads and 18 untapped).
Overall size is within +/- .0003".
Flatness and parallelism are within .0003".
Squareness on all sides to within 0.0003".
Pairs are matched to a tolerance of 0.0002".
2 pieces per set.