Surface Roughness Comparator Inch/Metric Combo, 3602-0226 Measuring Tools The 1840 hardness tester is

The 1840 hardness tester is capable of measuring the surface hardness of a broad variety of metals on flat and round surfaces

Efficiently designed for maximum protection of tool holder

Diagram of JD21-0001 and JD21-0003

Manufactured from stainless steel

Up to 100% longer tool life

Surface Roughness Comparator Inch/Metric Combo, 3602-0226 Measuring Tools The 1840 hardness tester isSurface Roughness Comparator Inch Metric Combo #3602 0226 Applications: Used to determine the degree of the surface finish by comparison method and visual estimation or magnifying glass. Ideal for on site or in process checks in a machine shop, inspection lab, or QC environment. Features: Contains standards for the (6) most important machining methods: horizontal milling, vertical milling, turning, plain grinding, flat lapping and external grinding.