Precise Surface Finish Comparator, Inch/Metric Combo – 900

• Used to determine the degree of the surface finish by comparison method and visual estimation or magnifying glass.
• Contains standards for the (6) most important machining methods: horizontal milling, vertical milling, turning, plain grinding, flat lapping and external grinding
• No. of Specimens: 30
• Range of 2 to 500″ and 0.05 to 12.5m.