The Manual Vernier Caliper is a high-quality measuring tool made of hardened stainless steel. It is designed to accurately measure internal, external, and height dimensions of an object. The caliper has a small locking thumb screw which locks the jaws in place, ensuring precise and consistent measurements. The base measuring function includes inside, outside, depth, and step measuring, making it an ideal tool for a broad range of industrial and automotive applications. This 12" (300mm) vernier caliper is durable and long-lasting due to its stainless steel material and no battery needed. It is an ideal tool for a lifetime of use. The metric caliper is a multi-functional tool that can measure outside diameter, inside diameter, depth, and step value of an exquisite item. Its measuring range is 0 - 300mm (0 - 12 inches), which is suitable for measuring a variety of objects. The slide of the vernier caliper is smooth with no grittiness, ensuring easy and accurate measurements. Additionally, it features an integrated depth rod for measuring depths of holes, slots, and recesses. The accuracy of the vernier caliper is also noteworthy, as it is designed to provide precise and accurate measurements every time. Overall, the Manual Vernier Caliper is a reliable, durable, and multi-functional tool that can be used for a wide range of applications. Its accuracy, smooth slide, and integrated depth rod make it an ideal tool for professionals and DIY enthusiasts alike.