Supraphon 1959

Set of 15 most common surface roughness gauges / standards, roughness gauges, roughness swatches, VP 1-3 Roughness templates for: lapping, front and circumferential grinding Range: 0,05 - 3 , 2 Hs, according to standard ÄOSN 014450 Accuracy class: 1 Size of scale: 23x29mm The gauges were made in 1959, they are in very good condition, without corrosion.