Accurate and Stable Measurement: Designed specifically for high accuracy performance, with stable reading results that help reduce measurement errors and improve quality control in production, research, or maintenance tasks. High accuracy capillary measurement tool: This measuring instrument is designed for precise and reliable measurement of small tubes and capillaries, making it ideal for laboratory, industrial, and workshop applications that require accurate inner and outer diameter readings. Sturdy Structure: Made of sturdy and wear- materials, it ensures a long service life and consistent performance even under frequent workshop or laboratory conditions. Wide inner diameter range: Supports accurate measurement of inner diameter, allowing you to confidently inspect and verify various fine capillary and small-diameter components. Easy to read scale: Clear and easy to read markings on the measurement can help users quickly obtain accurate values, improve work efficiency, and reduce misreading., Weight: 0.661386786 pounds, Manufacturer: Teuypty