Make outside, inside, step base and depth measurements with ease and accurately with the AmPro Stainless Steel Digital Caliper. The Easy-to-Read LCD panel provides instant SAE/Metric conversions and guarantees accurate measurements. The caliper also features a zero setting at any position within measuring range and a thumb wheel fine adjustment. The Stainless Steel Digital Caliper ranges 0" to 6" in 0.0005" resolution and has a range of 0-150mm (6").