https://www.crossco.com/products/dimensional-metrology/surface-roughness-gages/skidded-drive/
Skidded Drive Surface Roughness Gages From Cross Company
drive surface roughnessgages
https://www.crossco.com/products/dimensional-metrology/surface-roughness-gages/skidless-drive/
Skidless Drive Surface Roughness Gages From Cross Company
drive surface roughnessgages