Resolution 0.001mm ( Micron Digital caliper).  
                                             Used for measuring the workpiece demanding  higher accuracy. 
                                              Mostly used for differential measurement (comparison  measurement) of the OD, ID, groove, steps, depth (with bridge base), etc. of  workpiece to achieve higher accuracy. 
                                                Prepare gauges by yourself when the  ranges are larger than 50mm. 
                                                Zero-setting  at any position. 
                                                Inch/mm  conversion. 
                                            Data output. | 
                                           
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