●High Quality: High quality carbon steel material, durable and long lasting, no battery required. High-quality measuring device. ●High Accuracy: Accuracy of 1/128 inch/0.05mm. ●Slide is smooth, no grittiness. Integrated depth rod Glides smoothly, no gritty feel. Highly Polished: The surface is highly polished, solidly constructed, glides smoothly, has no gritty feel, and has a hardened measuring surface. ●Multi Function: Metric inch calipers are 0-6 inches/150 mm, inside/outside/step/depth measurement, for almost all basic precision measurement needs. ●Wide Application: The caliper is preferred to woodworkers, mechanics, auto mechanics, plumbers, jeweler workers, home DIY lovers, hobbyists, even the professionals.