Digital Life Deal 6" Digital LCD 150mm Stainless Vernier Micrometer Gauge Caliper Electronic Rule Measures inside Ruler, outside and depth from 0 inch to 6" or 0mm to 150mm Small locking thumb screw which locks the jaws in place High quality stainless Steel with LED display Made of hardened stainless steel digital ruler An ideal tool for a broad range of industrial and automotive applications