Selected Stainless Steel MaterialThe calipers are made of selected stainless steel, waterproof and stain-resistant, more durable and stronger than traditional plastic digital calipers, with knurled thumb rollers and locking screws to ensure smooth sliding and accurate positioning when measuring. Accurate MeasurementThe vernier caliper has 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. 4 Types of MeasurementThis 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 ConversionThis 6-inch digital caliper measuring tool can switch between two units with one click, very simple and fast, with a large LCD screen, even in strong sunlight is easy to use and read. This caliper tool will automatically turn off after 5 minutes of non-use to save power. Wide ApplicationThis caliper comes with a ruler, a screwdriver, two batteries, a wider range of applications, suitable for most measurement scenarios, loved by professionals and amateurs, is the best choice for mechanics, woodworkers, jewelers, craftsmen, amateurs, DIY, auto mechanics, etc.