0.01 mm precision lever gauge with a base that securely attaches to metal surfaces for stable operation. Largediameter rotating gauge with rustresistant aluminum alloy construction and an adjustable rotating base for visibility and flexible positioning in tight spaces. Delivers stable performance in metalworking shops, mold manufacturing facilities, and equipment maintenance scenarios where submillimeter measurement accuracy matters. Essential for machinists, inspectors, and automotive technicians requiring repeatable dimensional verification in workshop or production line environments. Key benefits and features Accurate at 0.01 mm, enabling precise dimensional verification and tolerance control. Base attaches securely to metal surfaces, providing stable positioning during measurement. Largediameter rotating gauge is easy to read from various angles. Rustresistant aluminum alloy construction offers durability in environments. Adjustable base and rotating gauge enhance visibility and allow flexible positioning in tight or awkward spaces. 23 practical use scenarios Setup and inspection of machined parts in metalworking shops to verify critical dimensions and maintain tolerances. Mold manufacturing and die tooling checks, ensuring cavity inserts and tooling spacing meet specification. Equipment maintenance and automotive technician tasks that require repeatable dimensional verification on production lines or service bays.