Accusize - 6" x 0.001"/150mm x 0.02mm, Inch/Metric Dual Needle Precision Dial Caliper Stainles Steel, In Fitted Case, P920-S236 Range: 6"/150 mm, Resolution: 0.001"/0.02 mm, 0.100" single revolution Hardened stainless steel Direct reading to 0.001"/0.02 mm on large clear dial Utilizes two separate needles for inch or metric readings, precision ground and micro-lapped adjusting slide for fine adjustment Inside, outside, and depth measurements