When your work requires measurements with extreme accuracy, this digital caliper gets the job done. The 6" digital caliper is an easy-to-use, highly accurate tool for measuring between two opposite sides of a tool or part. The large, easy-to-read LCD screen clearly displays measurements in millimeters, inch-decimal and inch fractions with an accuracy of 0.001". The zero feature allows you to set any position as your zero point at the touch of a button. This caliper also comes with a hard-shell case to keep your tool clean and safe when not in use.