Product description:
This is a matched set (2 each) of professional quality 1-2-3 blocks They are precision ground and case hardened to RC 55-62 on all six sides.
They contain one untapped 1/2 inch through hole. Overall size is within +/- .0002″. Flatness and parallelism are within .0002″. Squareness on all sides to within 0.0002″.
Pairs are matched to a tolerance of 0.0002″. There are 2 pieces per set.
Specification:
Matched pair 1-2-3 blocks includes 2 blocks
Professional quality precision ground steel and case hardened to RC 55-62 on all six sides
Squareness on all sides within 0.0002″
One single 1/2” untapped through hole
Overall size is within +/- .0002″; Flatness and parallelism within .0002″.
Package Including:
2PCS 1-2-3 Precision Ground Machinist Set Up Blocks 1/2″ Hole



