This has reference plates manufactured from electro-formed solid nickel, which give improved wear characteristics and definition of surface finish. It is invaluable for tactile and visual inspection of machined component finish. Metric Ra and imperial AA samples are included. Supplied in a PVC wallet (165 x 85 x 10 closed). Production is as standardised in ANSI B46.1 - 1978 military standard 45662.
Tester Type = Surface Comparator