Hardened stainless steel construction ensures durability and resistance to corrosion, ideal for demanding workshop conditions. Features dual needles for direct reading in both inches (to 0.001") and metric (to 0.02mm), enhancing versatility across tasks. Large, clear dial allows for easy and accurate measurements, minimizing reading errors during precision work. Precision ground and micro-lapped adjusting slide for fine adjustment, ensuring high accuracy with ±0.001"/0.03mm tolerance. Measuring range of 0-8"/0-200mm, suitable for a wide range of machining and engineering applications.