Black granite rule
MICROPLAN®
RL: RIGHE DI CONTROLLO LINEARI
For high precision testing of straightness, for comparing guides or lapped surfaces.
Their shape has been studied to give maximum stability. The lapping on one face is carried out to 3 precision grades with tolerances as shown on the catalogue.
They can be supplied with handles on the heads.
RL: RIGHE DI CONTROLLO PIANPARALLELE
Manufactured with two H-shaped lapped parallel surfaces to ensure stability and lightness. The 3 precision grades are shown on the catalogue's page.
The parallelism tolerance is equal to the flatness one.
When required, they can be supplied with handles on the heads.
