This shockproof dial caliper is a reliable tool for measuring up to 4 inches with a precision of 0.001 inches. The white dial color and dial type make it easy to read the measurements. It's perfect for use in metalworking inspection and measurement, CNC, metalworking, and manufacturing. The caliper type is dial, and it has a maximum measurement of 4.0 inches. It's made for professionals in the business and industrial field. This product is ideal for anyone who needs an accurate and durable dial caliper for their daily work.