Hardened and precision ground on all 6 sides of each block.
Squareness is 0.0003"/1".
Heat treated and case hardened to HRC 58-62.
Tolerance of size +/- 0.0002".
Parallelism 0.0002".
Height of pair 0.0002".
Cross drilling design gives minimum weight and maximum strength. ~ Supplied in a durable fitted ABS case.
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Shipping Weight: 2.4 lbs
Many metalworking products contain metals that are included in
the latest Prop 65 warning. Exposure to the elements can be
harmful. May cause cancer and reproductive harm.
