Wiha digital calliper digimax reading 0 01mm wiha 29422 this digimax digital caliper from wiha can provide internal external and depth readings of a wide variety of items to an accuracy of 0 01mm the 5 digit display switches off automatically after 5 minutes of inactivity to preserve battery life zero setting possible in every position for quick comparison measurements wiha 411 170 1 29422 digital caliper digimax reading 0 01mm