Precision measurement tool: This digital bore gauge offers exceptional accuracy of 0.01 mm for internal diameter measurements. It is ideal for machinists, engineers and quality control professionals who require reliable comparative measurements of workpiece inner diameters in workshop environments. Comprehensive measuring range: Features three measuring ranges (1835 mm / 3550 mm / 50160 mm) with interchangeable anvils crafted from alloy steel. This enables versatile application across various engineering projects and manufacturing requirements. Professional grade construction: Crafted from stainless steel, this internal diameter gauge provides outstanding wear resistance and long lasting performance even with frequent use in demanding industrial settings. Complete measurement kit: Each package includes the inner diameter cylinder gauge, measuring rod, connector set, and protective storage box. Everything needed for immediate use in machine shops, automotive , manufacturing facilities, or precision engineering tasks. Use scenarios: In a machine , verify bore sizes during setup for milling or turning operations. In quality control, perform quick comparative checks of workpiece inner diameters against standard references. In maintenance, inspect cylinder bores in automotive or hydraulic equipment to detect wear or deviation.