20mm (13/16") Horizontal Digital Indicator The digital indicator has 20 mm (13/16") of plunger travel The operation of the plunger is parallel to the Horizontal LCD display The display can be set to zero in any position, and switch between metric and imperial reading Applications include:Setting work pieces in a lathe chuck, Lathe carriage digital stop/readout,Setting work piece parallel to quill/vertical travel, General purpose indicator