findmall 2-3-4 Blocks Matched Pair 23 Holes (2"x3"x4") 234 Accuracy Ground Machinist Set Up Blocks .0003" HRC 55-62

Package includes: Matched pair blocks(2 blocks)

Accuracy 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 +/- 0.0003".

Flatness and parallelism are within 0.0003".

Squareness on all sides to within 0.0003".

Pairs are matched to a tolerance of 0.0002".

2 pieces per set.