High Precision Professional Tool Large display and high precision for mechanical applications. Lug back or flat back and 3/8" stem will allow installation of this indicator on any magnetic base. Features: 2 Reading functions: inch and metric Extra large LCD display ABS: absolute & incremental reading Flat Back or Lug Back option includedProtective case included Range 0-1" Resolution: .0005" / .01mm / 1/128 inch Accuracy: +/- 0.001" Extra battery included