1-2-3 Blocks Single 1/2" Hole Matched Pair (2 each), Hardened Steel RC 55-62, (1"x2"x3") 123 Precision Ground Machinist Set Up Blocks TTW123SH

Precision 2-4-6 Blocks

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Heat treated above 48 Rockwell "C"; .0001 to .0003 over allowance for nominal lapping. Squareness of all sides is within .0002 per inch.

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Product Review

Heat treated above 48 Rockwell "C"; .0001 to .0003 over allowance for nominal lapping. Squareness of all sides is within .0002 per inch.

Precision ground. Case hardened.
Cross-drilling design for extra strength and minimum weight.
Five 5/8-11tapped holes are provided for clamping.

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1-2-3 Blocks Single 1/2" Hole Matched Pair (2 each), Hardened Steel RC 55-62, (1"x2"x3") 123 Precision Ground Machinist Set Up Blocks TTW123SH