Mitutoyo 500-193 Absolute Digital Caliper, Stainless Steel, Battery Powered, Inch/Metric, 0-12" Range, -0.0015" Accuracy, 0.0005" Resolution Hardened stainless steel construction for protection of caliper components Four-way measurement capability for multiple applications: outside diameter (OD), inside diameter (ID), depth, and step Digital, single-value readout LCD display in metric units for readability Position memory for retaining measurements Function control buttons on the face, for ease of use: Origin, On/Off, and Zero/ABS (Absolute Scale)