Micrometer Drive with 18 mm Travel6 mm Shaft Æ Lockable Spindle These PI precision micrometer drives comply with the DIN 863 precision standard. The 0.5 mm pitch threads are ground into the through-hardened spindle. M-619 micrometers feature flat tips the other micrometers come with spherical tips. The scale rises with retracting spindle with maximum length at the zero position.
