- Fine workmanship for versatile internal size measurement Alloy measuring heads are designed to measure various internal sizes such as bores and internal features. The workmanship minimizes burrs and provides a practical, reliable tool for everyday use. - Clear reading and easy handling A clear marking line on the scale allows easy and precise reading, delivering a comfortable and confident measuring experience. - Durable material and construction The main micrometer body is made of stainless steel with a plated surface, providing strength and long-lasting durability in demanding work environments. - High performance and reliability A locking device and a machined, intuitive structure make readings straightforward and stable, enabling confident use and precise control. - Practical use scenarios 1) Machining setup and inspection: verify bore diameters on parts during setup to ensure fit within tolerances. 2) Maintenance and repair: measure inner diameters of sleeves, bushings, or tubes to assess wear or damage. 3) Quality control: perform quick checks of internal dimensions in production to confirm specification compliance. - Compatibility and scope Suitable for internal size measurement in metalworking, automotive, and general mechanical applications, offering a reliable option for various internal dimension checks.