Fowler-Rubert Electro-Formed Surface Roughness Comparison Standards Pocket Set

Japanese Surface Roughness Gages

Rubert & Co Cylindrical Turning Scale No. 120 Roughness Specimens Comparator

Surface Roughness Comparison Composite Pocket Set No 130 by Rubert & Co (F10)

SPI Surface Roughness Tester Profilometer 14-416-2 Surface Inspection Tool

30 Pc Specimen Surface Roughness Comparator Composite Pocket Set Gauge

Rare Vintage GE Standard Roughness Specimens (Cat. 8651831G2)

Flexbar 16008 Surface Roughness Standard Machinist Inspection