etc surface inspection instruments
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Roughness Comparison Specimens Surftest SJ-210 Portable Surface Roughness TesterThis set consists of 30 comparison specimens, covering six commonly-usedmachining methods (6 turned, 6 end-milled, 6 horizontally milled, 6 surface-ground,3 lapped, 3 reamed/drilled.A label gives the Ra and Rz values of each specimen in both metric and imperial units.Turning - 0.4μｍ, 0.8μm, 1.6μm, 3.2μm, 6.3μm, 12.5μmVertical milling - 0.4μｍ, 0.8μm, 1.6μm, 3.2μm, 6.3μm, 12.5μmHorizontal milling - 0.4μｍ, 0.8μm, 1.6μm, 3.2μm, 6.3μmGrinding - 0.05μｍ, 0.1μm, 0.2μm, 0.4μm, 0.8μm, 1.6μmFlat lapping reaming - 0.05μｍ, 0.1μm, 0.2μm, 0.4μm, 0.8μm, 1.6μm
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Surface Roughness Inspection Instruments.
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