This Digimatic Cable Straight was the perfect addition to my toolbox .It has made calibration an absolute breeze. The device is reliable, durable, and accurate. i put my trust in the Mitutoyo brand, and they did not disappoint. The product was a little pricey, but it has made up for it in time saved and precision results. If you are looking for a calibration device that delivers look no further. This Industrial and Scientific product is a must-have for anyone in need of precise measurements..