Granite Square Ruler

On inspection of verticality and parallelism as well as absolute 90° measuring base. No Dimension mm Flatness and beeline of the measuring surface (μm) Parallelism of the two measuring surface(μm) Perpendicularity between measuring surfaces and side surface (μm) height difference of the paralells within a matched pair(μm)00 Grade000 Grade000 Grade000 Grade000 Grade000 Grade000 Grade000 Grade0108-2101 108-2102 108-2103 108-2104 108-2105 108-2106 108-2107 108-2108100×100×20 160×160×25 200×200×25 250×250×30 300×300×30 400×400×40 500×500×50 630×630×601.5 1.8 2.0 2.2 2.6 3.0 3.5 4.23.0 3.5 4.0 4.5 5.2 6.0 7.0 8.30.7 0.8 0.9 1.0 1.1 1.3 1.5 1.81.4 1.6 1.8 2.0 2.3 2.6 3.0 3.51.5 1.5 2.0 2.2 2.6 3.0 3.5 4.23.0 3.5 4.0 4.5 5.5 6.0 7.0 8.315 18 20 22 26 30 35 4230 35 40 45 52 60 70 83