【Accurate Measurement】The vernier calipers have a measuring range: 0-6"/0-150mm, accuracy: ±0.001" / 0.03mm; resolution: 0.0005" / 0.01mm, which meets all your measuring needs. The digital micrometer glides smoothly and allows you to set the zero point and measure at any point of the scale, which is very convenient. 【Premium Stainless Steel Material】The calipers are made of selected stainless steel, waterproof and stain-resistant, more resilient and stronger than traditional plastic digital calipers, with knurled thumb rollers and locking screws to ensure smooth sliding and accurate positioning when measuring. 【4 Types of Measurement】This digital caliper has four types of measurement, you can use the two sets of jaws and a probe configured to measure depth, step, outer diameter and inner diameter, suitable for most measurement scenarios. In addition, the caliper measuring tool comes with a black portable and sturdy case for easy storage, pressure and shock resistance. 【Millimeter and Inch Conversion】This 6-inch digital caliper measuring tool seamlessly switches between two units with a single click, providing simplicity and speed. Equipped with a large LCD screen, it remains easy to use and read even in strong sunlight. Additionally, this measuring tool automatically powers off after 5 minutes of non-use to conserve energy. 【Extensive Versatility】This digital vernier caliper includes a ruler, a screwdriver, and two batteries, making it versatile and suitable for a wide range of applications. It is favored by professionals and amateurs alike and is the top choice for mechanics, woodworkers, jewelers, craftsmen, DIY enthusiasts, auto mechanics, and more. TIP: It will completely powered off when the "OFF" button is pressed, which does not consume battery power, thus extending its service life.