Precision you can rely on: 0.01 mm accuracy enables repeatable submillimeter measurements for tight tolerances. Magnetic base for secure, hands use: clings to metal surfaces to provide stable operation without extra clamps. Largediameter rotating gauge: offers clear visibility and easy reference during measurement in confined spaces. Durable, antirust aluminum alloy construction: built to withstand daily use in workshop environments. Flexible positioning: adjustable magnetic base allows precise placement and easy access in tight or awkward spots. Versatile performance: suitable for metalworking shops, mold manufacturing facilities, and equipment maintenance scenarios requiring accurate dimensional verification. Ideal for professionals: machinists, inspectors, and automotive technicians needing repeatable measurements on the floor or production line. Key attributes: Function: lever/rotating gauge with magnetic base for precise dimension checks Compatibility: operates on ferrous metal surfaces via magnetic base Size: largediameter rotating gauge for visibility in tight spaces Material: antirust aluminum alloy Performance: 0.01 mm accuracy, submillimeter measurement capability Practical use scenarios: 1) Machine setup and part inspection in metalworking shops to verify critical dimensions before machining. 2) Die, mold, and tooling alignment in mold manufacturing to ensure consistent part formation. 3) Online maintenance and automotive component verification on production lines for repeatable checks.