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Master Square with master block are made from selected black granite stone. Master squares are ideal for insp ecting the X, Y and Z axes of machine tools. Our Square granite master block are very stable and rigid, providing the ultimate in squareness references. Our Granite square have 5 finished faces (1 large face and
The Luthra Granite Block Master (Square) is manufactured from selected black granite stone, designed to provide the ultimate in squareness references. These master squares are stable and rigid, serving as high-precision inspection tools for industrial metrology and machine tool calibration. Each unit features 5 finished faces—comprising 1 large face and 4 edges—which are finished flat, square, and parallel to Grade-0 accuracy, with all six faces available for finishing upon request.
