The Groz Vernier Dial Caliper 150mm is a precision measuring instrument designed for accurate measurements of internal, external, depth, and step dimensions in engineering, metalworking, and electrical assembly applications. The dial readout provides quick, easy-to-read measurements with minimal parallax error, and the hardened stainless steel construction ensures durability and corrosion resistance. Ideal for technicians, engineers, fabricators, and trade professionals who require reliable precision measurement on the workshop floor.