- Dual Functionality: This instrument serves as both an aperture measuring tool and a cylinder measuring device, delivering precise measurements in a variety of complex environments. - Durable Design: Constructed with a thick, frosted handle, this bore gauge ensures a long service life, making it a reliable choice for professionals. - Enhanced Safety Features: The insulating handle design prevents slips and electrical hazards, while the eccentric locking device and stable clamping table provide secure and accurate measurements. - Specifications: Made from tool steel, this extender bore gauge measures up to 6 inches with a resolution of 0.001 inches. It accommodates diameters of 57 mm, ensuring versatility in measurement tasks. - Practical Applications: Ideal for automotive engine measurements, precision machining, and quality control in manufacturing, this tool is essential for professionals who require accuracy and reliability in their work. - Compatibility: Suitable for various measurement scenarios, this gauge is designed to provide consistent results across different materials and environmental conditions.