1、The resolution of the inner wheel is 0.1in and that of the outer wheel is 0.001 in. 2、1in precision dial indicator can be used to calibrate test equipment and measure runout. 3、With a 1/4 in lug hole, it is easy to install the micrometer on a magnetic base or other useful calibration and measurement equipment. 4、The 0.001in resolution provides maximum accuracy and specificity, allowing you to measure more accurately. 5、With stainless steel brackets and contact tips, the measurement results are accurate and easy to use. 6、With rotatable dial and adjustable marker, it can provide reference point for your measurement. 7、It is equipped with 2in display panel and 5in long plunger. It has high sensitivity, stable and reliable precision. 1 x Dial Indicator Condition: 100% Brand NewItem Type: Dial IndicatorMaterial: Stainless SteelInner Wheel Resolution: 0.1inOuter Wheel Resolution: 0.001inDisplay Screen: 2inLug Hole: 1/4inPlunger Length: Approx. 1.5in