Master square

Master square granite master square Cast Iron Measuring Tools Four edges flat, square and parallel to each other with lightening holes All granite products available in custom sizes and thicknesses, with threaded inserts, without lightening holes Pecification (mm) Verticality measuring face basis Measuring surface flatness or straightness Base surface plane or straightness Precision grade 00 0 00 0 00 0 100*63 2 4 1 1 1 1 160*100 2 4 1 2 1 1 250*160 2.5 5 1 2 1 2 400*250 3.5