3D scanners for high-precision digitization of three-dimensional shapes of manufacturing parts and products. Used for dimensional inspection of machined parts, shape measurement of molds and jigs, reverse engineering, and actual measurement data acquisition in quality control. Compatible with precision verification of CNC machined products, shape verification of cast products, and dimensional management of resin molded products. Includes handheld 3D scanners, stationary high-precision scanners, and industrial laser scanners. Unlike conventional 2D scanners or cameras, these are specialized measurement devices that acquire three-dimensional coordinate data of solid objects and enable comparison verification with CAD data.