BL-25-50-75 Pair of Precision Steel 25mm x 50mm x 75mm Blocks

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Feature

Metric version of '1-2-3' blocks
Cross-drilling design for extra strength and minimum weight.
Five 3/8-16 tapped holes are provided for clamping.
Precision ground. Case hardened.

Description

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