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HHIP 3402-0905 1-2-3 Tin Coated Block Set
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. 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.