INSIDE DIAMETER DIAL INDICATOR: large dial design, clear scale, easy to operate, fast reading, metal probe, suitable for a variety of measuring items.INSIDE DIAMETER INDICATOR : Equipped with an excellent guide bridge, the self-centering is accurate and reliable, one end of the measuring head is a movable probe, and the other end is a replaceable probe that changes according to the measured aperture.FUNCTION INTRODUCTION: It is suitable for the comparison method of measuring the inside diameter of the workpiece.INSIDE DIAMETER GAUGE KIT: 1 x meter rod, 1 x meter head, 5 x measuring rod, 1 x screw washer, 1 x plastic box.PARAMETERS: The measuring range of this dial diameter meter is 50-160mm, the accuracy can reach 0.01mm, and the measurement is convenient.