12 "DIGITAL CALIPER w/Extra-Large LCD Screen Instantly Converts SAE&METRIC Stainless Steel 0 - 12" (0 - 300mm) Range Precision 3-key model: On/Off, Inch/MM, Zero Switchable inch/metric with resolution to .0005"/.01mm on high contrast LCD display Accuracy: 0.001" (0.02mm) and Repetability: 0.0005" (0.01mm) 4-way measurements: Outside, Inside, Depth and Step