This tool features double scale markings for thread pitch P=0.5/0.7/0.8/1.0/1.25/1.5/1.75/2 and integrated measurements to support a wide range of mechanical applications. Clear, accurate scale slope provides instant readability and helps minimize measurement errors when working with threaded fasteners or cylindrical components. Designed for busy workshop environments, including machine factories, manufacturing equipment, and equipment maintenance stations, to quickly confirm screw specifications. Ideal for professional technicians, industrial engineers, and automotive professionals who require reliable measurement tools for accuracy and reliability analysis. Durable construction suitable for daily handling in workshop settings, offering consistent performance across common fastener sizes and configurations. Use scenarios Verifying thread pitch on replacement fasteners during engine or transmission service to ensure proper fit. Checking screw specifications on assembled machinery during maintenance or commissioning to verify compatibility. Performing reliability and quality checks in manufacturing to confirm fastener specifications across assemblies.