Master Rectangular Square, Granite | 250 x 250Part Number 451.4G2.250.250.040

Maximize your inspection efficiency with our 4-Sided Granite Squares. Unlike standard squares, the four finished faces allow for versatile measurement of multiple axes without repositioning the master. Crafted from dense, stable black granite and lapped to Grade 00 tolerances, these squares provide the ultimate reference for verifying machine tool squareness and alignment.

Protect your master squares from the bumps and grit of the manufacturing environment. Built with custom-milled high-density foam and available in Baltic Birch or heavy-duty shells, TAC Rockford cases keep granite and ceramic squares secure and clean. They provide reliable storage for your most sensitive alignment tools. Contact us if you need custom foam pockets to fit your specific setup or extra accessories.