5", Metric & English Vernier Caliper, Graduated In mm & 16th Of An Inch, With Vernier Reading Of .1mm & 1/128", 5" Capacity, Inside & Outside Jaws & Full Length Depth Gauge, Caliper Has Inside, Outside Depth & Step Measurement, Has Lock For Repetitive Measurement, Friction Roller Adjustment, Slide Lock For Gauging.