|The Carbon Fiber Digital Fractional Caliper brings you three universal systems of measurement, making it an equally practical choice for both professional and do-it-yourself projects. The high-contrast digital display easily switches between inches, millimeters and fractions, with guaranteed accuracy to 0.001". In addition, the lightweight, non-marring carbon fiber construction delivers accurate readings of inside, outside, step and depth measurements.|
A lot of play in the mechanism. Not very accurate. No thumb roller. Nice little case though.
Upon receipt I noticed package had been cut open. I noticed that it has no thumb roller to easily expand it to a specific size. You have to slide it back and forth. Takes too much time to use it accurately. That explained the opened package. It had been returned. Its a cheap tool, as reflected in the price. I hesitate to return it because then Ill be out postage with nothing to show for it.