Description
1-2-3 Precision Matched Pair Block Set ~ Heat treated and case hardened to HRC 55 to 60. ~ Hardened and precision ground on all 6 sides of each block. ~ Accuracy with squareness on all sides within .0002″ per inch. ~ 23 holes consists of 5 tapped holes that are 3/8″-16 for clamping and 18 untapped holes. ~ Cross drilling design gives minimum weight and maximum strength. Heat treated and case hardened to HRC 55 to 60. Accuracy with squareness on all sides within .0002″ per inch. Heat treated and case hardened to HRC 55 to 60. Cross drilling design gives minimum weight and maximum strength. 23 holes consists of 5 tapped holes that are 3/8″-16 for clamping and 18 untapped holes.





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