This digital three-jaw inside micrometer is a professional tool for measuring through holes, blind holes, and bearing holes. Its 0.001-inch accuracy ensures the best possible measurement results. The innovative three-jaw design allows for easy and safe measurement of holes of various sizes and shapes, making it perfect for a wide range of mechanical applications. Made from durable materials, this micrometer is long-lasting and capable of meeting the demands of industrial applications, while remaining lightweight and portable for easy operation. Whether you are in a machining shop or conducting field measurements, this micrometer consistently provides reliable and accurate results.