Whether you are in mechanical processing, manufacturing, or automobile maintenance, our Dial Bore Gauge will become an indispensable tool for you. This Bore Gauge is suitable for measuring internal diameters ranging from 2 to 6 inches with an accuracy of 0.001 inches, ensuring precision in every measurement. This Bore Gauge features a unique design that allows you to measure the internal diameter without disassembling the parts, significantly improving work efficiency. It is especially suitable for assembly line operations and quick inspections. Featuring a two-point contact design, it can accurately measure geometric diameters and deep holes with a precision of up to 0.001 inches. Whether it is complex mechanical parts or deep bores, this Dial Bore Gauge can handle it effortlessly. Equipped with 11 different gauge heads, including 2.0", 2.2", 2.4", 2.6", 2.8", 3.0", 3.2", 3.4", 3.6", 3.8", and 4.0", it meets various internal measurement needs. Whatever size bore you need to measure, this tool provides the perfect solution. Made of high-quality aluminum alloy with a chrome-plated handle, ensuring it is not easily damaged during use. The ABS storage case not only makes storage convenient but also effectively protects the tool, extending its lifespan. Adjust the pointer to zero before measuring, making it simple to operate. Even beginners can quickly get started, suitable for all kinds of professional technicians and mechanical enthusiasts. Factories and Production Workshops: Used in manufacturing and processing industries for measuring the internal diameter of parts and components. Repair and Maintenance Locations: Such as auto repair shops, for inspecting and maintaining the internal diameter of equipment parts. Quality Control Laboratories: For detecting and verifying the dimensions of mechanical parts to ensure product quality. Package Includes: 0-0.5 inch Dial Indicator, A set of Measuring Accessories, Measuring Rod, Different Gauge Heads, ABS Storage Case