This 6 inch Vernier caliper is excellent for providing accurate and precise measurements. It features a dual scale with metric and imperial measurements, with accuracy up to 0.05mm and 1/128 inches. It is perfect for measuring the length, inner diameter, outer diameter of any objects up to 8 inches. This caliper is made from durable carbon steel, and the laser engraved graduations will not fade over time. Scientific conversions are conveniently provided on the back including The jaws glide smoothly and a locking screw can be used for obtaining measurements. Case is included.