Digital caliper with a 0-200 mm (0-8 in) measuring range, dual units for metric and imperial. Resolution: 0.01 mm / 0.0005 in. Accuracy: ±0.02 mm / ±0.001 in. The knurled thumb wheel provides smooth operation and helps prevent slipping or sticking, ensuring consistent measurements. Key features - Four measurement modes: outside diameter, inside diameter, depth, and step measurement to cover common tasks - Digital readout for quick, precise results in both mm and inches - Designed for DIY projects, home use, and 3D printing Why you need it - Delivers accurate, repeatable measurements for small parts and assemblies - Reduces measurement time with an easy-to-read display and smooth operation - Versatile tool that supports multiple measurement scenarios in one device Use scenarios - Check outer dimensions of small components such as fasteners, housings, or fittings - Measure inner diameters of holes, bosses, or bores - Determine depth of slots or recessed features - Assess step distances between surfaces on a machined or 3D-printed part