HFS R 1 Pair 123 Blocks 123 Ultra Precision 0002 Hardened 23 Holes 0 0002

Product description Size within +/- .0002" Flatness and parallelism within .0002" Squareness on all sides is 0.0003" per inch Pairs are matched to a tolerance of 0.0002" Product application Used for set-up, layout and inspection jobs Product features Has 23 holes with 5 holes tap to 3/8-16 threads for clamping and 18 untapped holes Made of hardened tool steel and precision ground on all six sides Cross drilling design allows efficient use of lower weight with maximum strength Heat treat and hardness 56 to 60 RC 2 pieces per set Weight: 2.1 Lbs Precision ground cose hardened 1-2-3blocks-Five3/8"-16tapped holes are provided operation