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Cross-drilling design for extra strength and minimum weight.
Hardened and precision ground 25mm x 50mm x 75mm Block Set. This matched pair of blocks is ground to tolerances of .0001". 23 holes
Idea for mounting work for precision.
It is a hexahedron which is made of hardened steel.
Used for set-up, layout and inspection jobs. Suitable for all kinds of machine tool.
Heat treated above 48 Rockwell "C"; .0001 to .0003 over allowance for nominal lapping. Squareness of all sides is within .0002 per inch.